818616612 has 24 divisors (see below), whose sum is σ = 2083751712. Its totient is φ = 248065600.

The previous prime is 818616593. The next prime is 818616629. The reversal of 818616612 is 216616818.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3100689 + ... + 3100952.

It is an arithmetic number, because the mean of its divisors is an integer number (86822988).

Almost surely, 2^818616612 is an apocalyptic number.

It is an amenable number.

818616612 is an abundant number, since it is smaller than the sum of its proper divisors (1265135100).

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

818616612 is a wasteful number, since it uses less digits than its factorization.

818616612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6201659 (or 6201657 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 818616612 is about 28611.4769279742. The cubic root of 818616612 is about 935.4635093070.

The spelling of 818616612 in words is "eight hundred eighteen million, six hundred sixteen thousand, six hundred twelve".