2131423655792 has 20 divisors (see below), whose sum is σ = 4129843474440. Its totient is φ = 1065657597888.

The previous prime is 2131423655773. The next prime is 2131423655821. The reversal of 2131423655792 is 2975563241312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131423655792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3064178 + ... + 3694865.

It is an arithmetic number, because the mean of its divisors is an integer number (206492173722).

Almost surely, 2^{2131423655792} is an apocalyptic number.

It is an amenable number.

2131423655792 is a deficient number, since it is larger than the sum of its proper divisors (1998419818648).

2131423655792 is a wasteful number, since it uses less digits than its factorization.

2131423655792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778760 (or 6778754 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 50.

The spelling of 2131423655792 in words is "two trillion, one hundred thirty-one billion, four hundred twenty-three million, six hundred fifty-five thousand, seven hundred ninety-two".