40135815696 has 40 divisors (see below), whose sum is σ = 104175611104. Its totient is φ = 13315196160.

The previous prime is 40135815691. The next prime is 40135815703. The reversal of 40135815696 is 69651853104.

It is a super-2 number, since 2×40135815696² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (40135815691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1971301 + ... + 1991556.

Almost surely, 2^40135815696 is an apocalyptic number.

It is an amenable number.

40135815696 is an abundant number, since it is smaller than the sum of its proper divisors (64039795408).

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

40135815696 is a wasteful number, since it uses less digits than its factorization.

40135815696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963079 (or 3963073 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 40135815696 in words is "forty billion, one hundred thirty-five million, eight hundred fifteen thousand, six hundred ninety-six".