2640082577931 has 12 divisors (see below), whose sum is σ = 3867163213680. Its totient is φ = 1735265543760.

The previous prime is 2640082577929. The next prime is 2640082577939. The reversal of 2640082577931 is 1397752800462.

It is a happy number.

2640082577931 is a `hidden beast` number, since 2 + 6 + 400 + 82 + 5 + 77 + 93 + 1 = 666.

It is not a de Polignac number, because 2640082577931 - 2¹ = 2640082577929 is a prime.

It is a super-2 number, since 2×2640082577931² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2640082577939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2065791676 + ... + 2065792953.

It is an arithmetic number, because the mean of its divisors is an integer number (322263601140).

It is a 1-persistent number, because it is pandigital, but 2⋅2640082577931 = 5280165155862 is not.

Almost surely, 2^{2640082577931} is an apocalyptic number.

2640082577931 is a deficient number, since it is larger than the sum of its proper divisors (1227080635749).

2640082577931 is a wasteful number, since it uses less digits than its factorization.

2640082577931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131584706 (or 4131584703 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 2640082577931 in words is "two trillion, six hundred forty billion, eighty-two million, five hundred seventy-seven thousand, nine hundred thirty-one".