82504773477 has 16 divisors (see below), whose sum is σ = 139690622080. Its totient is φ = 47145584736.

The previous prime is 82504773433. The next prime is 82504773487. The reversal of 82504773477 is 77437740528.

82504773477 is a `hidden beast` number, since 8 + 250 + 47 + 7 + 347 + 7 = 666.

It is not a de Polignac number, because 82504773477 - 2⁶ = 82504773413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82504773487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218266408 + ... + 218266785.

It is an arithmetic number, because the mean of its divisors is an integer number (8730663880).

Almost surely, 2^82504773477 is an apocalyptic number.

It is an amenable number.

82504773477 is a deficient number, since it is larger than the sum of its proper divisors (57185848603).

82504773477 is a wasteful number, since it uses less digits than its factorization.

82504773477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436533209 (or 436533203 counting only the distinct ones).

The product of its (nonzero) digits is 9219840, while the sum is 54.

The spelling of 82504773477 in words is "eighty-two billion, five hundred four million, seven hundred seventy-three thousand, four hundred seventy-seven".