351366788644 has 45 divisors (see below), whose sum is σ = 649843804001. Its totient is φ = 166234175280.

The previous prime is 351366788623. The next prime is 351366788711. The reversal of 351366788644 is 446887663153.

The square root of 351366788644 is 592762.

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

It can be written as a sum of positive squares in only one way, i.e., 95937628644 + 255429160000 = 309738^2 + 505400^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 427973754 + ... + 427974574.

Almost surely, 2^351366788644 is an apocalyptic number.

351366788644 is the 592762-nd square number.

It is an amenable number.

351366788644 is a deficient number, since it is larger than the sum of its proper divisors (298477015357).

351366788644 is an frugal number, since it uses more digits than its factorization.

351366788644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 842 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 61.

The spelling of 351366788644 in words is "three hundred fifty-one billion, three hundred sixty-six million, seven hundred eighty-eight thousand, six hundred forty-four".