3636738349488 has 320 divisors, whose sum is σ = 12035765376000. Its totient is φ = 1043615010816.

The previous prime is 3636738349481. The next prime is 3636738349493. The reversal of 3636738349488 is 8849438376363.

3636738349488 is a `hidden beast` number, since 3 + 6 + 3 + 67 + 3 + 83 + 4 + 9 + 488 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (3636738349481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3597181 + ... + 4495907.

It is an arithmetic number, because the mean of its divisors is an integer number (37611766800).

Almost surely, 2^{3636738349488} is an apocalyptic number.

3636738349488 is a gapful number since it is divisible by the number (38) 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 3636738349488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6017882688000).

3636738349488 is an abundant number, since it is smaller than the sum of its proper divisors (8399027026512).

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

3636738349488 is a wasteful number, since it uses less digits than its factorization.

3636738349488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898809 (or 898797 counting only the distinct ones).

The product of its digits is 1504935936, while the sum is 72.

The spelling of 3636738349488 in words is "three trillion, six hundred thirty-six billion, seven hundred thirty-eight million, three hundred forty-nine thousand, four hundred eighty-eight".