2643959879188 has 48 divisors (see below), whose sum is σ = 4889771712000. Its totient is φ = 1248354252288.

The previous prime is 2643959879179. The next prime is 2643959879201. The reversal of 2643959879188 is 8819789593462.

It is a Harshad number since it is a multiple of its sum of digits (79).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 92209318 + ... + 92237986.

It is an arithmetic number, because the mean of its divisors is an integer number (101870244000).

Almost surely, 2^{2643959879188} is an apocalyptic number.

It is an amenable number.

2643959879188 is a deficient number, since it is larger than the sum of its proper divisors (2245811832812).

2643959879188 is a wasteful number, since it uses less digits than its factorization.

2643959879188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41464 (or 41462 counting only the distinct ones).

The product of its digits is 1881169920, while the sum is 79.

The spelling of 2643959879188 in words is "two trillion, six hundred forty-three billion, nine hundred fifty-nine million, eight hundred seventy-nine thousand, one hundred eighty-eight".