82173695957 has 8 divisors (see below), whose sum is σ = 87032428992. Its totient is φ = 77317739200.

The previous prime is 82173695953. The next prime is 82173695963. The reversal of 82173695957 is 75959637128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82173695957 - 2² = 82173695953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82173695957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82173695953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632969 + ... + 751662.

It is an arithmetic number, because the mean of its divisors is an integer number (10879053624).

Almost surely, 2^82173695957 is an apocalyptic number.

It is an amenable number.

82173695957 is a deficient number, since it is larger than the sum of its proper divisors (4858733035).

82173695957 is a wasteful number, since it uses less digits than its factorization.

82173695957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388139.

The product of its digits is 28576800, while the sum is 62.

The spelling of 82173695957 in words is "eighty-two billion, one hundred seventy-three million, six hundred ninety-five thousand, nine hundred fifty-seven".