82179859785 has 32 divisors (see below), whose sum is σ = 134428280832. Its totient is φ = 42851075520.

The previous prime is 82179859771. The next prime is 82179859793. The reversal of 82179859785 is 58795897128.

It is not a de Polignac number, because 82179859785 - 2⁶ = 82179859721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606090 + ... + 729180.

It is an arithmetic number, because the mean of its divisors is an integer number (4200883776).

Almost surely, 2^82179859785 is an apocalyptic number.

It is an amenable number.

82179859785 is a deficient number, since it is larger than the sum of its proper divisors (52248421047).

82179859785 is a wasteful number, since it uses less digits than its factorization.

82179859785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124093.

The product of its digits is 101606400, while the sum is 69.

The spelling of 82179859785 in words is "eighty-two billion, one hundred seventy-nine million, eight hundred fifty-nine thousand, seven hundred eighty-five".