2139189371646 has 16 divisors (see below), whose sum is σ = 4278775717008. Its totient is φ = 712996961600.

The previous prime is 2139189371639. The next prime is 2139189371743. The reversal of 2139189371646 is 6461739819312.

It is a super-2 number, since 2×2139189371646² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2139189371646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16470495 + ... + 16599866.

It is an arithmetic number, because the mean of its divisors is an integer number (267423482313).

Almost surely, 2^{2139189371646} is an apocalyptic number.

2139189371646 is an abundant number, since it is smaller than the sum of its proper divisors (2139586345362).

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

2139189371646 is a wasteful number, since it uses less digits than its factorization.

2139189371646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33081147.

The product of its digits is 11757312, while the sum is 60.

The spelling of 2139189371646 in words is "two trillion, one hundred thirty-nine billion, one hundred eighty-nine million, three hundred seventy-one thousand, six hundred forty-six".