512926683721 has 9 divisors (see below), whose sum is σ = 522825837429. Its totient is φ = 503211579936.

The previous prime is 512926683683. The next prime is 512926683917. The reversal of 512926683721 is 127386629215.

The square root of 512926683721 is 716189.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 32982555321 + 479944128400 = 181611^2 + 692780^2 .

It is not a de Polignac number, because 512926683721 - 2²⁵ = 512893129289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512926683421) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 37951261 + ... + 37964773.

Almost surely, 2^512926683721 is an apocalyptic number.

512926683721 is the 716189-th square number.

512926683721 is the 358095-th centered octagonal number.

It is an amenable number.

512926683721 is a deficient number, since it is larger than the sum of its proper divisors (9899153708).

512926683721 is an frugal number, since it uses more digits than its factorization.

512926683721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27132 (or 13566 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The spelling of 512926683721 in words is "five hundred twelve billion, nine hundred twenty-six million, six hundred eighty-three thousand, seven hundred twenty-one".