2640581958234 has 16 divisors (see below), whose sum is σ = 5761269727200. Its totient is φ = 800176350960.

The previous prime is 2640581958199. The next prime is 2640581958253. The reversal of 2640581958234 is 4328591850462.

It is a super-2 number, since 2×2640581958234² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20004408709 + ... + 20004408840.

It is an arithmetic number, because the mean of its divisors is an integer number (360079357950).

Almost surely, 2^{2640581958234} is an apocalyptic number.

2640581958234 is an abundant number, since it is smaller than the sum of its proper divisors (3120687768966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2640581958234 is a wasteful number, since it uses less digits than its factorization.

2640581958234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40008817565.

The product of its (nonzero) digits is 16588800, while the sum is 57.

The spelling of 2640581958234 in words is "two trillion, six hundred forty billion, five hundred eighty-one million, nine hundred fifty-eight thousand, two hundred thirty-four".