82694894187 has 6 divisors (see below), whose sum is σ = 110260523028. Its totient is φ = 55129597404.

The previous prime is 82694894179. The next prime is 82694894213. The reversal of 82694894187 is 78149849628.

It is not a de Polignac number, because 82694894187 - 2³ = 82694894179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82694894287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 415068 + ... + 581094.

It is an arithmetic number, because the mean of its divisors is an integer number (18376753838).

Almost surely, 2^82694894187 is an apocalyptic number.

82694894187 is a deficient number, since it is larger than the sum of its proper divisors (27565628841).

82694894187 is an frugal number, since it uses more digits than its factorization.

82694894187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332057 (or 166030 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 66.

The spelling of 82694894187 in words is "eighty-two billion, six hundred ninety-four million, eight hundred ninety-four thousand, one hundred eighty-seven".