82777707065 has 32 divisors (see below), whose sum is σ = 107481572352. Its totient is φ = 61068672000.

The previous prime is 82777707059. The next prime is 82777707073. The reversal of 82777707065 is 56070777728.

It is not a de Polignac number, because 82777707065 - 2⁴ = 82777707049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82777707065.

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, 121805 + ... + 424725.

It is an arithmetic number, because the mean of its divisors is an integer number (3358799136).

Almost surely, 2^82777707065 is an apocalyptic number.

It is an amenable number.

82777707065 is a deficient number, since it is larger than the sum of its proper divisors (24703865287).

82777707065 is a wasteful number, since it uses less digits than its factorization.

82777707065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303041.

The product of its (nonzero) digits is 8067360, while the sum is 56.

The spelling of 82777707065 in words is "eighty-two billion, seven hundred seventy-seven million, seven hundred seven thousand, sixty-five".