2679259891 has 16 divisors (see below), whose sum is σ = 3536870400. Its totient is φ = 1964926080.

The previous prime is 2679259883. The next prime is 2679259907. The reversal of 2679259891 is 1989529762.

It is a cyclic number.

It is not a de Polignac number, because 2679259891 - 2³ = 2679259883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2679259861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1022091 + ... + 1024708.

It is an arithmetic number, because the mean of its divisors is an integer number (221054400).

Almost surely, 2^2679259891 is an apocalyptic number.

2679259891 is a deficient number, since it is larger than the sum of its proper divisors (857610509).

2679259891 is a wasteful number, since it uses less digits than its factorization.

2679259891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046834.

The product of its digits is 4898880, while the sum is 58.

The square root of 2679259891 is about 51761.5677023021. The cubic root of 2679259891 is about 1388.9020349663.

The spelling of 2679259891 in words is "two billion, six hundred seventy-nine million, two hundred fifty-nine thousand, eight hundred ninety-one".