2640601459 has 4 divisors (see below), whose sum is σ = 2711969104. Its totient is φ = 2569233816.

The previous prime is 2640601429. The next prime is 2640601499. The reversal of 2640601459 is 9541060462.

2640601459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2640601459 - 2⁵ = 2640601427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 71367607 = 2640601459 / (2 + 6 + 4 + 0 + 6 + 0 + 1 + 4 + 5 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2640601429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35683767 + ... + 35683840.

It is an arithmetic number, because the mean of its divisors is an integer number (677992276).

Almost surely, 2^2640601459 is an apocalyptic number.

2640601459 is a deficient number, since it is larger than the sum of its proper divisors (71367645).

2640601459 is an equidigital number, since it uses as much as digits as its factorization.

2640601459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71367644.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 2640601459 is about 51386.7829212921. The cubic root of 2640601459 is about 1382.1895960185.

The spelling of 2640601459 in words is "two billion, six hundred forty million, six hundred one thousand, four hundred fifty-nine".