37206937881 has 27 divisors (see below), whose sum is σ = 54318631549. Its totient is φ = 24541907712.

The previous prime is 37206937871. The next prime is 37206937897. The reversal of 37206937881 is 18873960273.

The square root of 37206937881 is 192891.

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 27002705625 + 10204232256 = 164325^2 + 101016^2 .

It is not a de Polignac number, because 37206937881 - 2⁷ = 37206937753 is a prime.

It is a super-2 number, since 2×37206937881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37206937841) 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, 65389765 + ... + 65390333.

Almost surely, 2^37206937881 is an apocalyptic number.

37206937881 is the 192891-st square number.

37206937881 is the 96446-th centered octagonal number.

It is an amenable number.

37206937881 is a deficient number, since it is larger than the sum of its proper divisors (17111693668).

37206937881 is an frugal number, since it uses more digits than its factorization.

37206937881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 37206937881 in words is "thirty-seven billion, two hundred six million, nine hundred thirty-seven thousand, eight hundred eighty-one".