37213882281 has 9 divisors (see below), whose sum is σ = 53754221469. Its totient is φ = 24808869036.

The previous prime is 37213882273. The next prime is 37213882291. The reversal of 37213882281 is 18228831273.

The square root of 37213882281 is 192909.

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

37213882281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 37213882281 - 2³ = 37213882273 is a prime.

It is a super-2 number, since 2×37213882281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (37213882231) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 546576 + ... + 610878.

Almost surely, 2^37213882281 is an apocalyptic number.

37213882281 is the 192909-th square number.

37213882281 is the 96455-th centered octagonal number.

It is an amenable number.

37213882281 is a deficient number, since it is larger than the sum of its proper divisors (16540339188).

37213882281 is an frugal number, since it uses more digits than its factorization.

37213882281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128612 (or 64306 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The spelling of 37213882281 in words is "thirty-seven billion, two hundred thirteen million, eight hundred eighty-two thousand, two hundred eighty-one".