40960823681 has 16 divisors (see below), whose sum is σ = 41652960000. Its totient is φ = 40273459200.

The previous prime is 40960823653. The next prime is 40960823749. The reversal of 40960823681 is 18632806904.

It is a cyclic number.

It is not a de Polignac number, because 40960823681 - 2²⁶ = 40893714817 is a prime.

It is a super-2 number, since 2×40960823681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40960823611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25268051 + ... + 25269671.

It is an arithmetic number, because the mean of its divisors is an integer number (2603310000).

Almost surely, 2^40960823681 is an apocalyptic number.

It is an amenable number.

40960823681 is a deficient number, since it is larger than the sum of its proper divisors (692136319).

40960823681 is a wasteful number, since it uses less digits than its factorization.

40960823681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 40960823681 in words is "forty billion, nine hundred sixty million, eight hundred twenty-three thousand, six hundred eighty-one".