37972890056 has 8 divisors (see below), whose sum is σ = 71199168870. Its totient is φ = 18986445024.

The previous prime is 37972889993. The next prime is 37972890073. The reversal of 37972890056 is 65009827973.

It can be written as a sum of positive squares in only one way, i.e., 37960287556 + 12602500 = 194834^2 + 3550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 37972889983 and 37972890010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2373305621 + ... + 2373305636.

Almost surely, 2^37972890056 is an apocalyptic number.

It is an amenable number.

37972890056 is a deficient number, since it is larger than the sum of its proper divisors (33226278814).

37972890056 is a wasteful number, since it uses less digits than its factorization.

37972890056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746611263 (or 4746611259 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 37972890056 in words is "thirty-seven billion, nine hundred seventy-two million, eight hundred ninety thousand, fifty-six".