521314986775 has 12 divisors (see below), whose sum is σ = 705197000664. Its totient is φ = 379138172000.

The previous prime is 521314986743. The next prime is 521314986821. The reversal of 521314986775 is 577689413125.

It is not a de Polignac number, because 521314986775 - 2⁵ = 521314986743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 947845156 + ... + 947845705.

It is an arithmetic number, because the mean of its divisors is an integer number (58766416722).

Almost surely, 2^521314986775 is an apocalyptic number.

521314986775 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

521314986775 is a deficient number, since it is larger than the sum of its proper divisors (183882013889).

521314986775 is a wasteful number, since it uses less digits than its factorization.

521314986775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895690882 (or 1895690877 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 58.

The spelling of 521314986775 in words is "five hundred twenty-one billion, three hundred fourteen million, nine hundred eighty-six thousand, seven hundred seventy-five".