37921505157 has 16 divisors (see below), whose sum is σ = 56190663360. Its totient is φ = 25276208400.

The previous prime is 37921505143. The next prime is 37921505207. The reversal of 37921505157 is 75150512973.

37921505157 is a `hidden beast` number, since 3 + 7 + 92 + 1 + 505 + 1 + 57 = 666.

It is not a de Polignac number, because 37921505157 - 2¹⁸ = 37921243013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37921505117) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 14782 + ... + 275792.

It is an arithmetic number, because the mean of its divisors is an integer number (3511916460).

Almost surely, 2^37921505157 is an apocalyptic number.

It is an amenable number.

37921505157 is a deficient number, since it is larger than the sum of its proper divisors (18269158203).

37921505157 is a wasteful number, since it uses less digits than its factorization.

37921505157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266401 (or 266395 counting only the distinct ones).

The product of its (nonzero) digits is 330750, while the sum is 45.

The spelling of 37921505157 in words is "thirty-seven billion, nine hundred twenty-one million, five hundred five thousand, one hundred fifty-seven".