520386879612 has 24 divisors (see below), whose sum is σ = 1214257368016. Its totient is φ = 173459248128.

The previous prime is 520386879601. The next prime is 520386879637. The reversal of 520386879612 is 216978683025.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394578 + ... + 1093830.

Almost surely, 2^520386879612 is an apocalyptic number.

It is an amenable number.

520386879612 is an abundant number, since it is smaller than the sum of its proper divisors (693870488404).

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

520386879612 is a wasteful number, since it uses less digits than its factorization.

520386879612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761277 (or 761275 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 520386879612 in words is "five hundred twenty billion, three hundred eighty-six million, eight hundred seventy-nine thousand, six hundred twelve".