513423412331015 has 64 divisors (see below), whose sum is σ = 643826107932672. Its totient is φ = 392621303692800.

The previous prime is 513423412330991. The next prime is 513423412331021. The reversal of 513423412331015 is 510133214324315.

It is a happy number.

It is not a de Polignac number, because 513423412331015 - 2³⁶ = 513354692854279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513423412331015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4379827694 + ... + 4379944916.

It is an arithmetic number, because the mean of its divisors is an integer number (10059782936448).

Almost surely, 2^{513423412331015} is an apocalyptic number.

513423412331015 is a deficient number, since it is larger than the sum of its proper divisors (130402695601657).

513423412331015 is a wasteful number, since it uses less digits than its factorization.

513423412331015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118480.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 513423412331015 in words is "five hundred thirteen trillion, four hundred twenty-three billion, four hundred twelve million, three hundred thirty-one thousand, fifteen".