532221642638 has 64 divisors (see below), whose sum is σ = 964560199680. Its totient is φ = 215155180800.

The previous prime is 532221642607. The next prime is 532221642671. The reversal of 532221642638 is 836246122235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157787120 + ... + 157790492.

It is an arithmetic number, because the mean of its divisors is an integer number (15071253120).

Almost surely, 2^532221642638 is an apocalyptic number.

532221642638 is a deficient number, since it is larger than the sum of its proper divisors (432338557042).

532221642638 is a wasteful number, since it uses less digits than its factorization.

532221642638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793.

The product of its digits is 829440, while the sum is 44.

The spelling of 532221642638 in words is "five hundred thirty-two billion, two hundred twenty-one million, six hundred forty-two thousand, six hundred thirty-eight".