512869977 has 6 divisors (see below), whose sum is σ = 740812202. Its totient is φ = 341913312.

The previous prime is 512869963. The next prime is 512869979. The reversal of 512869977 is 779968215.

It can be written as a sum of positive squares in only one way, i.e., 455352921 + 57517056 = 21339^2 + 7584^2 .

It is not a de Polignac number, because 512869977 - 2¹⁵ = 512837209 is a prime.

It is a super-2 number, since 2×512869977² = 526071226615961058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512869979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28492768 + ... + 28492785.

Almost surely, 2^512869977 is an apocalyptic number.

It is an amenable number.

512869977 is a deficient number, since it is larger than the sum of its proper divisors (227942225).

512869977 is a wasteful number, since it uses less digits than its factorization.

512869977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56985559 (or 56985556 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 512869977 is about 22646.6327960693. The cubic root of 512869977 is about 800.4528566236.

It can be divided in two parts, 512 and 869977, that added together give a square (870489 = 933²).

The spelling of 512869977 in words is "five hundred twelve million, eight hundred sixty-nine thousand, nine hundred seventy-seven".