776656667642052 has 48 divisors (see below), whose sum is σ = 1812504047618880. Its totient is φ = 258841964042112.

The previous prime is 776656667642039. The next prime is 776656667642087. The reversal of 776656667642052 is 250246766656677.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4180222774 + ... + 4180408562.

It is an arithmetic number, because the mean of its divisors is an integer number (37760500992060).

Almost surely, 2^{776656667642052} is an apocalyptic number.

It is an amenable number.

776656667642052 is an abundant number, since it is smaller than the sum of its proper divisors (1035847379976828).

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

776656667642052 is a wasteful number, since it uses less digits than its factorization.

776656667642052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242580 (or 242578 counting only the distinct ones).

The product of its (nonzero) digits is 6401203200, while the sum is 75.

The spelling of 776656667642052 in words is "seven hundred seventy-six trillion, six hundred fifty-six billion, six hundred sixty-seven million, six hundred forty-two thousand, fifty-two".