2172692131943 has 16 divisors (see below), whose sum is σ = 2305054402560. Its totient is φ = 2045379806400.

The previous prime is 2172692131921. The next prime is 2172692131979. The reversal of 2172692131943 is 3491312962712.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2172692131943 is a prime.

It is a super-2 number, since 2×2172692131943² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2172692131891 and 2172692131900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172692131903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7803323 + ... + 8076956.

It is an arithmetic number, because the mean of its divisors is an integer number (144065900160).

Almost surely, 2^{2172692131943} is an apocalyptic number.

2172692131943 is a deficient number, since it is larger than the sum of its proper divisors (132362270617).

2172692131943 is a wasteful number, since it uses less digits than its factorization.

2172692131943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15880438.

The product of its digits is 979776, while the sum is 50.

The spelling of 2172692131943 in words is "two trillion, one hundred seventy-two billion, six hundred ninety-two million, one hundred thirty-one thousand, nine hundred forty-three".