40769032656 has 40 divisors (see below), whose sum is σ = 114894548064. Its totient is φ = 12354252160.

The previous prime is 40769032597. The next prime is 40769032699. The reversal of 40769032656 is 65623096704.

It is a super-2 number, since 2×40769032656² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38606511 + ... + 38607566.

Almost surely, 2^40769032656 is an apocalyptic number.

It is an amenable number.

40769032656 is an abundant number, since it is smaller than the sum of its proper divisors (74125515408).

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

40769032656 is a wasteful number, since it uses less digits than its factorization.

40769032656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77214099 (or 77214093 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 40769032656 in words is "forty billion, seven hundred sixty-nine million, thirty-two thousand, six hundred fifty-six".