768764562520 has 32 divisors (see below), whose sum is σ = 1769946322320. Its totient is φ = 300354526080.

The previous prime is 768764562491. The next prime is 768764562529. The reversal of 768764562520 is 25265467867.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768764562529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223476351 + ... + 223479790.

Almost surely, 2^768764562520 is an apocalyptic number.

It is an amenable number.

768764562520 is an abundant number, since it is smaller than the sum of its proper divisors (1001181759800).

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

768764562520 is a wasteful number, since it uses less digits than its factorization.

768764562520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446956195 (or 446956191 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 58.

The spelling of 768764562520 in words is "seven hundred sixty-eight billion, seven hundred sixty-four million, five hundred sixty-two thousand, five hundred twenty".