4636987992 has 384 divisors, whose sum is σ = 16409433600. Its totient is φ = 1202294016.

The previous prime is 4636987987. The next prime is 4636987997. The reversal of 4636987992 is 2997896364.

4636987992 is a `hidden beast` number, since 463 + 6 + 9 + 87 + 9 + 92 = 666.

It is an interprime number because it is at equal distance from previous prime (4636987987) and next prime (4636987997).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4636987997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9218413 + ... + 9218915.

It is an arithmetic number, because the mean of its divisors is an integer number (42732900).

Almost surely, 2^4636987992 is an apocalyptic number.

4636987992 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4636987992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8204716800).

4636987992 is an abundant number, since it is smaller than the sum of its proper divisors (11772445608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4636987992 is a wasteful number, since it uses less digits than its factorization.

4636987992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 595 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 63.

The square root of 4636987992 is about 68095.4329746129. The cubic root of 4636987992 is about 1667.5492027467.

The spelling of 4636987992 in words is "four billion, six hundred thirty-six million, nine hundred eighty-seven thousand, nine hundred ninety-two".