7909935136 has 24 divisors (see below), whose sum is σ = 16109675820. Its totient is φ = 3818588928.

The previous prime is 7909935113. The next prime is 7909935139. The reversal of 7909935136 is 6315399097.

It can be written as a sum of positive squares in 2 ways, for example, as 7334894736 + 575040400 = 85644^2 + 23980^2 .

It is not an unprimeable number, because it can be changed into a prime (7909935139) 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 3 ways as a sum of consecutive naturals, for example, 4260891 + ... + 4262746.

Almost surely, 2^7909935136 is an apocalyptic number.

It is an amenable number.

7909935136 is an abundant number, since it is smaller than the sum of its proper divisors (8199740684).

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

7909935136 is a wasteful number, since it uses less digits than its factorization.

7909935136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523676 (or 8523668 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 52.

The square root of 7909935136 is about 88937.8161189041. The cubic root of 7909935136 is about 1992.4662516173.

The spelling of 7909935136 in words is "seven billion, nine hundred nine million, nine hundred thirty-five thousand, one hundred thirty-six".