39900000056 has 32 divisors (see below), whose sum is σ = 88258068480. Its totient is φ = 16548386400.

The previous prime is 39899999999. The next prime is 39900000067. The reversal of 39900000056 is 65000000993.

39900000056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39899999968 and 39900000031.

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, 11490200 + ... + 11493671.

It is an arithmetic number, because the mean of its divisors is an integer number (2758064640).

Almost surely, 2^39900000056 is an apocalyptic number.

It is an amenable number.

39900000056 is an abundant number, since it is smaller than the sum of its proper divisors (48358068424).

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

39900000056 is a wasteful number, since it uses less digits than its factorization.

39900000056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22983915 (or 22983911 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 32.

The spelling of 39900000056 in words is "thirty-nine billion, nine hundred million, fifty-six", and thus it is an aban number.