509343377776356 has 12 divisors (see below), whose sum is σ = 1188467881478192. Its totient is φ = 169781125925448.

The previous prime is 509343377776351. The next prime is 509343377776357. The reversal of 509343377776356 is 653677773343905.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (509343377776351) 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, 21222640740670 + ... + 21222640740693.

Almost surely, 2^{509343377776356} is an apocalyptic number.

It is an amenable number.

509343377776356 is an abundant number, since it is smaller than the sum of its proper divisors (679124503701836).

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

509343377776356 is a wasteful number, since it uses less digits than its factorization.

509343377776356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42445281481370 (or 42445281481368 counting only the distinct ones).

The product of its (nonzero) digits is 6301184400, while the sum is 75.

The spelling of 509343377776356 in words is "five hundred nine trillion, three hundred forty-three billion, three hundred seventy-seven million, seven hundred seventy-six thousand, three hundred fifty-six".