512994852540 has 72 divisors (see below), whose sum is σ = 1556334168480. Its totient is φ = 136776668544.

The previous prime is 512994852527. The next prime is 512994852589. The reversal of 512994852540 is 45258499215.

512994852540 is a `hidden beast` number, since 5 + 1 + 2 + 9 + 9 + 48 + 52 + 540 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 911481 + ... + 1362639.

It is an arithmetic number, because the mean of its divisors is an integer number (21615752340).

Almost surely, 2^512994852540 is an apocalyptic number.

It is an amenable number.

512994852540 is an abundant number, since it is smaller than the sum of its proper divisors (1043339315940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512994852540 is a wasteful number, since it uses less digits than its factorization.

512994852540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457491 (or 457486 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 512994852540 in words is "five hundred twelve billion, nine hundred ninety-four million, eight hundred fifty-two thousand, five hundred forty".