625114772164 has 9 divisors (see below), whose sum is σ = 1093953618541. Its totient is φ = 312556595440.

The previous prime is 625114772159. The next prime is 625114772207. The reversal of 625114772164 is 461277411526.

The square root of 625114772164 is 790642.

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

625114772164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 356459149764 + 268655622400 = 597042^2 + 518320^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1383624 + ... + 1778944.

Almost surely, 2^625114772164 is an apocalyptic number.

625114772164 is the 790642-nd square number.

It is an amenable number.

625114772164 is a deficient number, since it is larger than the sum of its proper divisors (468838846377).

625114772164 is an frugal number, since it uses more digits than its factorization.

625114772164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790646 (or 395323 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The spelling of 625114772164 in words is "six hundred twenty-five billion, one hundred fourteen million, seven hundred seventy-two thousand, one hundred sixty-four".