2640498913 has 16 divisors (see below), whose sum is σ = 2995115200. Its totient is φ = 2307683520.

The previous prime is 2640498901. The next prime is 2640498937. The reversal of 2640498913 is 3198940462.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2640498913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2640498313) 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, 743923 + ... + 747463.

It is an arithmetic number, because the mean of its divisors is an integer number (187194700).

Almost surely, 2^2640498913 is an apocalyptic number.

It is an amenable number.

2640498913 is a deficient number, since it is larger than the sum of its proper divisors (354616287).

2640498913 is a wasteful number, since it uses less digits than its factorization.

2640498913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6592.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 2640498913 is about 51385.7851258497. The cubic root of 2640498913 is about 1382.1717036493.

The spelling of 2640498913 in words is "two billion, six hundred forty million, four hundred ninety-eight thousand, nine hundred thirteen".