40017621896 has 64 divisors (see below), whose sum is σ = 86126976000. Its totient is φ = 17075600640.

The previous prime is 40017621883. The next prime is 40017621901. The reversal of 40017621896 is 69812671004.

It is a super-2 number, since 2×40017621896² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15443561 + ... + 15446151.

It is an arithmetic number, because the mean of its divisors is an integer number (1345734000).

Almost surely, 2^40017621896 is an apocalyptic number.

It is an amenable number.

40017621896 is an abundant number, since it is smaller than the sum of its proper divisors (46109354104).

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

40017621896 is a wasteful number, since it uses less digits than its factorization.

40017621896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 40017621896 in words is "forty billion, seventeen million, six hundred twenty-one thousand, eight hundred ninety-six".