4991632360 has 96 divisors (see below), whose sum is σ = 13294791720. Its totient is φ = 1675491840.

The previous prime is 4991632357. The next prime is 4991632397. The reversal of 4991632360 is 632361994.

It can be written as a sum of positive squares in 4 ways, for example, as 3022580484 + 1969051876 = 54978^2 + 44374^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23254 + ... + 102586.

Almost surely, 2^4991632360 is an apocalyptic number.

4991632360 is a gapful number since it is divisible by the number (40) 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 4991632360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6647395860).

4991632360 is an abundant number, since it is smaller than the sum of its proper divisors (8303159360).

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

4991632360 is a wasteful number, since it uses less digits than its factorization.

4991632360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79379 (or 79364 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 4991632360 is about 70651.4851931649. The cubic root of 4991632360 is about 1709.0215165146.

The spelling of 4991632360 in words is "four billion, nine hundred ninety-one million, six hundred thirty-two thousand, three hundred sixty".