32855912644 has 9 divisors (see below), whose sum is σ = 57498481551. Its totient is φ = 16427775060.

The previous prime is 32855912641. The next prime is 32855912701. The reversal of 32855912644 is 44621955823.

The square root of 32855912644 is 181262.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32855912641) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 317209 + ... + 407839.

Almost surely, 2^32855912644 is an apocalyptic number.

32855912644 is the 181262-nd square number.

It is an amenable number.

32855912644 is a deficient number, since it is larger than the sum of its proper divisors (24642568907).

32855912644 is an frugal number, since it uses more digits than its factorization.

32855912644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181266 (or 90633 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 49.

Multiplying 32855912644 by its sum of digits (49), we get a square (1609939719556 = 1268834²).

The spelling of 32855912644 in words is "thirty-two billion, eight hundred fifty-five million, nine hundred twelve thousand, six hundred forty-four".