512678916 has 48 divisors (see below), whose sum is σ = 1331164800. Its totient is φ = 170636256.

The previous prime is 512678909. The next prime is 512678917. The reversal of 512678916 is 619876215.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (512678917) 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, 77050 + ... + 83438.

It is an arithmetic number, because the mean of its divisors is an integer number (27732600).

Almost surely, 2^512678916 is an apocalyptic number.

It is an amenable number.

512678916 is an abundant number, since it is smaller than the sum of its proper divisors (818485884).

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

512678916 is a wasteful number, since it uses less digits than its factorization.

512678916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145 (or 7137 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 512678916 is about 22642.4140939079. The cubic root of 512678916 is about 800.3534459053.

The spelling of 512678916 in words is "five hundred twelve million, six hundred seventy-eight thousand, nine hundred sixteen".