513127163677 has 4 divisors (see below), whose sum is σ = 526995465436. Its totient is φ = 499258861920.

The previous prime is 513127163671. The next prime is 513127163699. The reversal of 513127163677 is 776361721315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 430140534201 + 82986629476 = 655851^2 + 288074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513127163677 is a prime.

It is a super-2 number, since 2×513127163677² (a number of 24 digits) contains 22 as substring.

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 513127163677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513127163671) 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, 6934150824 + ... + 6934150897.

It is an arithmetic number, because the mean of its divisors is an integer number (131748866359).

Almost surely, 2^513127163677 is an apocalyptic number.

It is an amenable number.

513127163677 is a deficient number, since it is larger than the sum of its proper divisors (13868301759).

513127163677 is a wasteful number, since it uses less digits than its factorization.

513127163677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13868301758.

The product of its digits is 1111320, while the sum is 49.

The spelling of 513127163677 in words is "five hundred thirteen billion, one hundred twenty-seven million, one hundred sixty-three thousand, six hundred seventy-seven".