1379688612 has 24 divisors (see below), whose sum is σ = 3263375136. Its totient is φ = 453595968.

The previous prime is 1379688587. The next prime is 1379688617. The reversal of 1379688612 is 2168869731.

It is not an unprimeable number, because it can be changed into a prime (1379688617) 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, 786618 + ... + 788369.

It is an arithmetic number, because the mean of its divisors is an integer number (135973964).

Almost surely, 2^1379688612 is an apocalyptic number.

1379688612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1379688612 is an abundant number, since it is smaller than the sum of its proper divisors (1883686524).

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

1379688612 is a wasteful number, since it uses less digits than its factorization.

1379688612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575067 (or 1575065 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 1379688612 is about 37144.1598639678. The cubic root of 1379688612 is about 1113.2525361981.

The spelling of 1379688612 in words is "one billion, three hundred seventy-nine million, six hundred eighty-eight thousand, six hundred twelve".