1818713612 has 12 divisors (see below), whose sum is σ = 3187894920. Its totient is φ = 907886496.

The previous prime is 1818713599. The next prime is 1818713623. The reversal of 1818713612 is 2163178181.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364793 + ... + 369744.

It is an arithmetic number, because the mean of its divisors is an integer number (265657910).

Almost surely, 2^1818713612 is an apocalyptic number.

It is an amenable number.

1818713612 is a deficient number, since it is larger than the sum of its proper divisors (1369181308).

1818713612 is a wasteful number, since it uses less digits than its factorization.

1818713612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735160 (or 735158 counting only the distinct ones).

The product of its digits is 16128, while the sum is 38.

The square root of 1818713612 is about 42646.3786504786. The cubic root of 1818713612 is about 1220.6414283573.

The spelling of 1818713612 in words is "one billion, eight hundred eighteen million, seven hundred thirteen thousand, six hundred twelve".