776664634754352 has 20 divisors (see below), whose sum is σ = 2006383639782200. Its totient is φ = 258888211584768.

The previous prime is 776664634754293. The next prime is 776664634754353. The reversal of 776664634754352 is 253457436466677.

It is a super-2 number, since 2×776664634754352² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (776664634754353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8090256611977 + ... + 8090256612072.

It is an arithmetic number, because the mean of its divisors is an integer number (100319181989110).

Almost surely, 2^{776664634754352} is an apocalyptic number.

It is an amenable number.

776664634754352 is an abundant number, since it is smaller than the sum of its proper divisors (1229719005027848).

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

776664634754352 is a wasteful number, since it uses less digits than its factorization.

776664634754352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16180513224060 (or 16180513224054 counting only the distinct ones).

The product of its digits is 12802406400, while the sum is 75.

The spelling of 776664634754352 in words is "seven hundred seventy-six trillion, six hundred sixty-four billion, six hundred thirty-four million, seven hundred fifty-four thousand, three hundred fifty-two".