812488516 has 24 divisors (see below), whose sum is σ = 1655640000. Its totient is φ = 341638752.

The previous prime is 812488511. The next prime is 812488519. The reversal of 812488516 is 615884218.

It is not an unprimeable number, because it can be changed into a prime (812488511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272266 + ... + 275233.

It is an arithmetic number, because the mean of its divisors is an integer number (68985000).

Almost surely, 2^812488516 is an apocalyptic number.

It is an amenable number.

812488516 is an abundant number, since it is smaller than the sum of its proper divisors (843151484).

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

812488516 is a wasteful number, since it uses less digits than its factorization.

812488516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547563 (or 547561 counting only the distinct ones).

The product of its digits is 122880, while the sum is 43.

The square root of 812488516 is about 28504.1841840808. The cubic root of 812488516 is about 933.1233928597.

The spelling of 812488516 in words is "eight hundred twelve million, four hundred eighty-eight thousand, five hundred sixteen".