2640877831770 has 32 divisors (see below), whose sum is σ = 6710936609088. Its totient is φ = 662808553728.

The previous prime is 2640877831733. The next prime is 2640877831783. The reversal of 2640877831770 is 771387780462.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2589095404 + ... + 2589096423.

It is an arithmetic number, because the mean of its divisors is an integer number (209716769034).

Almost surely, 2^{2640877831770} is an apocalyptic number.

2640877831770 is an abundant number, since it is smaller than the sum of its proper divisors (4070058777318).

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

2640877831770 is a wasteful number, since it uses less digits than its factorization.

2640877831770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5178191854.

The product of its (nonzero) digits is 22127616, while the sum is 60.

The spelling of 2640877831770 in words is "two trillion, six hundred forty billion, eight hundred seventy-seven million, eight hundred thirty-one thousand, seven hundred seventy".