82162783985 has 32 divisors (see below), whose sum is σ = 101225521152. Its totient is φ = 64000903680.

The previous prime is 82162783961. The next prime is 82162784023. The reversal of 82162783985 is 58938726128.

It is a de Polignac number, because none of the positive numbers 2^k-82162783985 is a prime.

It is a Duffinian number.

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, 19481597 + ... + 19485813.

It is an arithmetic number, because the mean of its divisors is an integer number (3163297536).

Almost surely, 2^82162783985 is an apocalyptic number.

It is an amenable number.

82162783985 is a deficient number, since it is larger than the sum of its proper divisors (19062737167).

82162783985 is a wasteful number, since it uses less digits than its factorization.

82162783985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4913.

The product of its digits is 11612160, while the sum is 59.

The spelling of 82162783985 in words is "eighty-two billion, one hundred sixty-two million, seven hundred eighty-three thousand, nine hundred eighty-five".