39887651056 has 40 divisors (see below), whose sum is σ = 86268657024. Its totient is φ = 17709101760.

The previous prime is 39887651053. The next prime is 39887651057. The reversal of 39887651056 is 65015678893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39887651053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2627716 + ... + 2642851.

Almost surely, 2^39887651056 is an apocalyptic number.

It is an amenable number.

39887651056 is an abundant number, since it is smaller than the sum of its proper divisors (46381005968).

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

39887651056 is a wasteful number, since it uses less digits than its factorization.

39887651056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5270629 (or 5270623 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 39887651056 in words is "thirty-nine billion, eight hundred eighty-seven million, six hundred fifty-one thousand, fifty-six".