513054705657 has 8 divisors (see below), whose sum is σ = 736693936384. Its totient is φ = 315725972688.

The previous prime is 513054705623. The next prime is 513054705703. The reversal of 513054705657 is 756507450315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 513054705657 - 2¹² = 513054701561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513054705607) 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, 6577624393 + ... + 6577624470.

It is an arithmetic number, because the mean of its divisors is an integer number (92086742048).

Almost surely, 2^513054705657 is an apocalyptic number.

It is an amenable number.

513054705657 is a deficient number, since it is larger than the sum of its proper divisors (223639230727).

513054705657 is a wasteful number, since it uses less digits than its factorization.

513054705657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13155248879.

The product of its (nonzero) digits is 2205000, while the sum is 48.

The spelling of 513054705657 in words is "five hundred thirteen billion, fifty-four million, seven hundred five thousand, six hundred fifty-seven".