2640601499 has 2 divisors, whose sum is σ = 2640601500. Its totient is φ = 2640601498.

The previous prime is 2640601429. The next prime is 2640601511. The reversal of 2640601499 is 9941060462.

2640601499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2640601499 is a prime.

It is not a weakly prime, because it can be changed into another prime (2640601429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320300749 + 1320300750.

It is an arithmetic number, because the mean of its divisors is an integer number (1320300750).

Almost surely, 2^2640601499 is an apocalyptic number.

2640601499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640601499 is an equidigital number, since it uses as much as digits as its factorization.

2640601499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 2640601499 is about 51386.7833104973. The cubic root of 2640601499 is about 1382.1896029977.

The spelling of 2640601499 in words is "two billion, six hundred forty million, six hundred one thousand, four hundred ninety-nine".