2640874733 has 8 divisors (see below), whose sum is σ = 3176992320. Its totient is φ = 2144469600.

The previous prime is 2640874727. The next prime is 2640874757. The reversal of 2640874733 is 3374780462.

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

It is not a de Polignac number, because 2640874733 - 2⁶ = 2640874669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640874793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9927968 + ... + 9928233.

It is an arithmetic number, because the mean of its divisors is an integer number (397124040).

Almost surely, 2^2640874733 is an apocalyptic number.

It is an amenable number.

2640874733 is a deficient number, since it is larger than the sum of its proper divisors (536117587).

2640874733 is a wasteful number, since it uses less digits than its factorization.

2640874733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19856227.

The product of its (nonzero) digits is 677376, while the sum is 44.

The square root of 2640874733 is about 51389.4418436317. The cubic root of 2640874733 is about 1382.2372749857.

The spelling of 2640874733 in words is "two billion, six hundred forty million, eight hundred seventy-four thousand, seven hundred thirty-three".