2640457753 has 8 divisors (see below), whose sum is σ = 2762539200. Its totient is φ = 2518982928.

The previous prime is 2640457733. The next prime is 2640457763. The reversal of 2640457753 is 3577540462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2640457753 - 2¹³ = 2640449561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2640457723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142738 + ... + 160171.

It is an arithmetic number, because the mean of its divisors is an integer number (345317400).

Almost surely, 2^2640457753 is an apocalyptic number.

2640457753 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2640457753 is a deficient number, since it is larger than the sum of its proper divisors (122081447).

2640457753 is a wasteful number, since it uses less digits than its factorization.

2640457753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303311.

The product of its (nonzero) digits is 705600, while the sum is 43.

The square root of 2640457753 is about 51385.3846244241. The cubic root of 2640457753 is about 1382.1645218647.

The spelling of 2640457753 in words is "two billion, six hundred forty million, four hundred fifty-seven thousand, seven hundred fifty-three".