512998710861 has 16 divisors (see below), whose sum is σ = 841844038784. Its totient is φ = 270592726464.

The previous prime is 512998710803. The next prime is 512998710863. The reversal of 512998710861 is 168017899215.

It is not a de Polignac number, because 512998710861 - 2¹⁴ = 512998694477 is a prime.

It is a super-2 number, since 2×512998710861² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512998710863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939557806 + ... + 939558351.

It is an arithmetic number, because the mean of its divisors is an integer number (52615252424).

Almost surely, 2^512998710861 is an apocalyptic number.

It is an amenable number.

512998710861 is a deficient number, since it is larger than the sum of its proper divisors (328845327923).

512998710861 is a wasteful number, since it uses less digits than its factorization.

512998710861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879116180.

The product of its (nonzero) digits is 2177280, while the sum is 57.

The spelling of 512998710861 in words is "five hundred twelve billion, nine hundred ninety-eight million, seven hundred ten thousand, eight hundred sixty-one".