7787682772164 has 27 divisors (see below), whose sum is σ = 19685573776687. Its totient is φ = 2595888676104.

The previous prime is 7787682772153. The next prime is 7787682772201. The reversal of 7787682772164 is 4612772867877.

The square root of 7787682772164 is 2790642.

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

7787682772164 is a `hidden beast` number, since 7 + 7 + 87 + 68 + 277 + 216 + 4 = 666.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7787682772092 and 7787682772101.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16511299 + ... + 16976405.

Almost surely, 2^{7787682772164} is an apocalyptic number.

7787682772164 is the 2790642-nd square number.

It is an amenable number.

7787682772164 is an abundant number, since it is smaller than the sum of its proper divisors (11897891004523).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7787682772164 is an frugal number, since it uses more digits than its factorization.

7787682772164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930224 (or 465112 counting only the distinct ones).

The product of its digits is 619573248, while the sum is 72.

The spelling of 7787682772164 in words is "seven trillion, seven hundred eighty-seven billion, six hundred eighty-two million, seven hundred seventy-two thousand, one hundred sixty-four".