37081636994 has 4 divisors (see below), whose sum is σ = 55622455494. Its totient is φ = 18540818496.

The previous prime is 37081636901. The next prime is 37081637051. The reversal of 37081636994 is 49963618073.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49963618073 = 3797 ⋅13158709.

It can be written as a sum of positive squares in only one way, i.e., 27843928225 + 9237708769 = 166865^2 + 96113^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9270409247 + ... + 9270409250.

Almost surely, 2^37081636994 is an apocalyptic number.

37081636994 is a deficient number, since it is larger than the sum of its proper divisors (18540818500).

37081636994 is a wasteful number, since it uses less digits than its factorization.

37081636994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18540818499.

The product of its (nonzero) digits is 5878656, while the sum is 56.

The spelling of 37081636994 in words is "thirty-seven billion, eighty-one million, six hundred thirty-six thousand, nine hundred ninety-four".