1379206899 has 32 divisors (see below), whose sum is σ = 2339136000. Its totient is φ = 786778272.

The previous prime is 1379206841. The next prime is 1379206901. The reversal of 1379206899 is 9986029731.

It is not a de Polignac number, because 1379206899 - 2²⁸ = 1110771443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1379206999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111097 + ... + 122885.

It is an arithmetic number, because the mean of its divisors is an integer number (73098000).

Almost surely, 2^1379206899 is an apocalyptic number.

1379206899 is a deficient number, since it is larger than the sum of its proper divisors (959929101).

1379206899 is a wasteful number, since it uses less digits than its factorization.

1379206899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12424 (or 12418 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 1379206899 is about 37137.6749272218. The cubic root of 1379206899 is about 1113.1229584952.

The spelling of 1379206899 in words is "one billion, three hundred seventy-nine million, two hundred six thousand, eight hundred ninety-nine".