37129394056 has 8 divisors (see below), whose sum is σ = 69617613870. Its totient is φ = 18564697024.

The previous prime is 37129394053. The next prime is 37129394089. The reversal of 37129394056 is 65049392173.

It can be written as a sum of positive squares in only one way, i.e., 33485340100 + 3644053956 = 182990^2 + 60366^2 .

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

It is a super-2 number, since 2×37129394056² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (37129394053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320587121 + ... + 2320587136.

Almost surely, 2^37129394056 is an apocalyptic number.

It is an amenable number.

37129394056 is a deficient number, since it is larger than the sum of its proper divisors (32488219814).

37129394056 is a wasteful number, since it uses less digits than its factorization.

37129394056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641174263 (or 4641174259 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 37129394056 in words is "thirty-seven billion, one hundred twenty-nine million, three hundred ninety-four thousand, fifty-six".