37108942907521 has 27 divisors (see below), whose sum is σ = 40180723868649. Its totient is φ = 34267774988832.

The previous prime is 37108942907501. The next prime is 37108942907539. The reversal of 37108942907521 is 12570924980173.

The square root of 37108942907521 is 6091711.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4249266890625 + 32859676016896 = 2061375^2 + 5732336^2 .

It is not a de Polignac number, because 37108942907521 - 2²¹ = 37108940810369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37108942907501) 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, 4063166671 + ... + 4063175803.

Almost surely, 2^{37108942907521} is an apocalyptic number.

37108942907521 is the 6091711-st square number.

37108942907521 is the 3045856-th centered octagonal number.

It is an amenable number.

37108942907521 is a deficient number, since it is larger than the sum of its proper divisors (3071780961128).

37108942907521 is an frugal number, since it uses more digits than its factorization.

37108942907521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18370 (or 9185 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 37108942907521 in words is "thirty-seven trillion, one hundred eight billion, nine hundred forty-two million, nine hundred seven thousand, five hundred twenty-one".