2640272626 has 16 divisors (see below), whose sum is σ = 4136342400. Its totient is φ = 1261595808.

The previous prime is 2640272561. The next prime is 2640272641. The reversal of 2640272626 is 6262720462.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26515 + ... + 77353.

It is an arithmetic number, because the mean of its divisors is an integer number (258521400).

Almost surely, 2^2640272626 is an apocalyptic number.

2640272626 is a deficient number, since it is larger than the sum of its proper divisors (1496069774).

2640272626 is a wasteful number, since it uses less digits than its factorization.

2640272626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51993.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 2640272626 is about 51383.5832343366. The cubic root of 2640272626 is about 1382.1322191385.

The spelling of 2640272626 in words is "two billion, six hundred forty million, two hundred seventy-two thousand, six hundred twenty-six".