32256746642 has 4 divisors (see below), whose sum is σ = 48385119966. Its totient is φ = 16128373320.

The previous prime is 32256746623. The next prime is 32256746699. The reversal of 32256746642 is 24664765223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28553902441 + 3702844201 = 168979^2 + 60851^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8064186659 + ... + 8064186662.

Almost surely, 2^32256746642 is an apocalyptic number.

32256746642 is a deficient number, since it is larger than the sum of its proper divisors (16128373324).

32256746642 is a wasteful number, since it uses less digits than its factorization.

32256746642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16128373323.

The product of its digits is 2903040, while the sum is 47.

The spelling of 32256746642 in words is "thirty-two billion, two hundred fifty-six million, seven hundred forty-six thousand, six hundred forty-two".