37640725677 has 40 divisors (see below), whose sum is σ = 57236899104. Its totient is φ = 24647416992.

The previous prime is 37640725673. The next prime is 37640725691. The reversal of 37640725677 is 77652704673.

37640725677 is a `hidden beast` number, since 3 + 7 + 6 + 4 + 0 + 72 + 567 + 7 = 666.

It is not a de Polignac number, because 37640725677 - 2² = 37640725673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37640725673) 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 39 ways as a sum of consecutive naturals, for example, 1146898 + ... + 1179260.

Almost surely, 2^37640725677 is an apocalyptic number.

It is an amenable number.

37640725677 is a deficient number, since it is larger than the sum of its proper divisors (19596173427).

37640725677 is a wasteful number, since it uses less digits than its factorization.

37640725677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32631 (or 32622 counting only the distinct ones).

The product of its (nonzero) digits is 10372320, while the sum is 54.

The spelling of 37640725677 in words is "thirty-seven billion, six hundred forty million, seven hundred twenty-five thousand, six hundred seventy-seven".