82537905693 has 4 divisors (see below), whose sum is σ = 110050540928. Its totient is φ = 55025270460.

The previous prime is 82537905689. The next prime is 82537905713. The reversal of 82537905693 is 39650973528.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82537905693 - 2² = 82537905689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82537905673) 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, 13756317613 + ... + 13756317618.

It is an arithmetic number, because the mean of its divisors is an integer number (27512635232).

Almost surely, 2^82537905693 is an apocalyptic number.

It is an amenable number.

82537905693 is a deficient number, since it is larger than the sum of its proper divisors (27512635235).

82537905693 is a wasteful number, since it uses less digits than its factorization.

82537905693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27512635234.

The product of its (nonzero) digits is 12247200, while the sum is 57.

The spelling of 82537905693 in words is "eighty-two billion, five hundred thirty-seven million, nine hundred five thousand, six hundred ninety-three".