82971693093 has 32 divisors (see below), whose sum is σ = 119792977920. Its totient is φ = 50891892480.

The previous prime is 82971693089. The next prime is 82971693107. The reversal of 82971693093 is 39039617928.

It is not a de Polignac number, because 82971693093 - 2² = 82971693089 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82971693023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354948 + ... + 540306.

It is an arithmetic number, because the mean of its divisors is an integer number (3743530560).

Almost surely, 2^82971693093 is an apocalyptic number.

It is an amenable number.

82971693093 is a deficient number, since it is larger than the sum of its proper divisors (36821284827).

82971693093 is a wasteful number, since it uses less digits than its factorization.

82971693093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185577.

The product of its (nonzero) digits is 4408992, while the sum is 57.

The spelling of 82971693093 in words is "eighty-two billion, nine hundred seventy-one million, six hundred ninety-three thousand, ninety-three".