2379015891 has 24 divisors (see below), whose sum is σ = 3929652480. Its totient is φ = 1358611056.

The previous prime is 2379015839. The next prime is 2379015923. The reversal of 2379015891 is 1985109732.

It is not a de Polignac number, because 2379015891 - 2¹³ = 2379007699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2379015091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101740 + ... + 122918.

It is an arithmetic number, because the mean of its divisors is an integer number (163735520).

Almost surely, 2^2379015891 is an apocalyptic number.

2379015891 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2379015891 is a deficient number, since it is larger than the sum of its proper divisors (1550636589).

2379015891 is a wasteful number, since it uses less digits than its factorization.

2379015891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22975 (or 22972 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 2379015891 is about 48775.1564938545. The cubic root of 2379015891 is about 1334.9524016190.

The spelling of 2379015891 in words is "two billion, three hundred seventy-nine million, fifteen thousand, eight hundred ninety-one".