39860942056 has 16 divisors (see below), whose sum is σ = 80488440900. Its totient is φ = 18397357824.

The previous prime is 39860942053. The next prime is 39860942057. The reversal of 39860942056 is 65024906893.

It can be written as a sum of positive squares in 2 ways, for example, as 31494181156 + 8366760900 = 177466^2 + 91470^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 39860941994 and 39860942012.

It is not an unprimeable number, because it can be changed into a prime (39860942053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191639041 + ... + 191639248.

Almost surely, 2^39860942056 is an apocalyptic number.

It is an amenable number.

39860942056 is an abundant number, since it is smaller than the sum of its proper divisors (40627498844).

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

39860942056 is a wasteful number, since it uses less digits than its factorization.

39860942056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383278308 (or 383278304 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 39860942056 in words is "thirty-nine billion, eight hundred sixty million, nine hundred forty-two thousand, fifty-six".