40687601856 has 56 divisors (see below), whose sum is σ = 117439220544. Its totient is φ = 12329575680.

The previous prime is 40687601833. The next prime is 40687601891. The reversal of 40687601856 is 65810678604.

It is a junction number, because it is equal to n+sod(n) for n = 40687601799 and 40687601808.

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, 9630370 + ... + 9634593.

Almost surely, 2^40687601856 is an apocalyptic number.

It is an amenable number.

40687601856 is an abundant number, since it is smaller than the sum of its proper divisors (76751618688).

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

40687601856 is a wasteful number, since it uses less digits than its factorization.

40687601856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19264989 (or 19264979 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 40687601856 in words is "forty billion, six hundred eighty-seven million, six hundred one thousand, eight hundred fifty-six".