37912373521 has 27 divisors (see below), whose sum is σ = 43135452297. Its totient is φ = 33295581000.

The previous prime is 37912373483. The next prime is 37912373531. The reversal of 37912373521 is 12537321973.

The square root of 37912373521 is 194711.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 37912373521 - 2¹⁷ = 37912242449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37912373531) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 66396166 + ... + 66396736.

Almost surely, 2^37912373521 is an apocalyptic number.

37912373521 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

37912373521 is the 194711-st square number.

37912373521 is the 97356-th centered octagonal number.

It is an amenable number.

37912373521 is a deficient number, since it is larger than the sum of its proper divisors (5223078776).

37912373521 is an frugal number, since it uses more digits than its factorization.

37912373521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226 (or 613 counting only the distinct ones).

The product of its digits is 238140, while the sum is 43.

The spelling of 37912373521 in words is "thirty-seven billion, nine hundred twelve million, three hundred seventy-three thousand, five hundred twenty-one".