1317828612 has 12 divisors (see below), whose sum is σ = 3074933456. Its totient is φ = 439276200.

The previous prime is 1317828583. The next prime is 1317828613. The reversal of 1317828612 is 2168287131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) 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 (1317828613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54909514 + ... + 54909537.

Almost surely, 2^1317828612 is an apocalyptic number.

1317828612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1317828612 is an abundant number, since it is smaller than the sum of its proper divisors (1757104844).

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

1317828612 is a wasteful number, since it uses less digits than its factorization.

1317828612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109819058 (or 109819056 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 1317828612 is about 36301.9092059908. The cubic root of 1317828612 is about 1096.3594832379.

The spelling of 1317828612 in words is "one billion, three hundred seventeen million, eight hundred twenty-eight thousand, six hundred twelve".