32162476921 has 15 divisors (see below), whose sum is σ = 33310139753. Its totient is φ = 31054341240.

The previous prime is 32162476909. The next prime is 32162476939. The reversal of 32162476921 is 12967426123.

The square root of 32162476921 is 179339.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20053675321 + 12108801600 = 141611^2 + 110040^2 .

It is a de Polignac number, because none of the positive numbers 2^k-32162476921 is a prime.

It is a Duffinian number.

Its product of digits (217728) is a multiple of the sum of its prime divisors (168).

It is not an unprimeable number, because it can be changed into a prime (32162476961) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 245515026 + ... + 245515156.

Almost surely, 2^32162476921 is an apocalyptic number.

32162476921 is the 179339-th square number.

32162476921 is the 89670-th centered octagonal number.

It is an amenable number.

32162476921 is a deficient number, since it is larger than the sum of its proper divisors (1147662832).

32162476921 is an frugal number, since it uses more digits than its factorization.

32162476921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 168 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The spelling of 32162476921 in words is "thirty-two billion, one hundred sixty-two million, four hundred seventy-six thousand, nine hundred twenty-one".