2639720274 has 32 divisors (see below), whose sum is σ = 5585280000. Its totient is φ = 829399824.

The previous prime is 2639720269. The next prime is 2639720287. The reversal of 2639720274 is 4720279362.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35494 + ... + 80865.

It is an arithmetic number, because the mean of its divisors is an integer number (174540000).

Almost surely, 2^2639720274 is an apocalyptic number.

2639720274 is an abundant number, since it is smaller than the sum of its proper divisors (2945559726).

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

2639720274 is a wasteful number, since it uses less digits than its factorization.

2639720274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116582.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 2639720274 is about 51378.2081626053. The cubic root of 2639720274 is about 1382.0358305142.

The spelling of 2639720274 in words is "two billion, six hundred thirty-nine million, seven hundred twenty thousand, two hundred seventy-four".