2173948422931 has 4 divisors (see below), whose sum is σ = 2288366761000. Its totient is φ = 2059530084864.

The previous prime is 2173948422887. The next prime is 2173948422977. The reversal of 2173948422931 is 1392248493712.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2173948422931 - 2¹⁹ = 2173947898643 is a prime.

It is a super-2 number, since 2×2173948422931² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173948422991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57209169006 + ... + 57209169043.

It is an arithmetic number, because the mean of its divisors is an integer number (572091690250).

Almost surely, 2^{2173948422931} is an apocalyptic number.

2173948422931 is a deficient number, since it is larger than the sum of its proper divisors (114418338069).

2173948422931 is a wasteful number, since it uses less digits than its factorization.

2173948422931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114418338068.

The product of its digits is 5225472, while the sum is 55.

The spelling of 2173948422931 in words is "two trillion, one hundred seventy-three billion, nine hundred forty-eight million, four hundred twenty-two thousand, nine hundred thirty-one".