82357664247 has 24 divisors (see below), whose sum is σ = 123380997376. Its totient is φ = 54898896312.

The previous prime is 82357664239. The next prime is 82357664261. The reversal of 82357664247 is 74246675328.

82357664247 is a `hidden beast` number, since 8 + 2 + 3 + 576 + 64 + 2 + 4 + 7 = 666.

It is not a de Polignac number, because 82357664247 - 2³ = 82357664239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82357664193 and 82357664202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82357664237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3342828 + ... + 3367374.

Almost surely, 2^82357664247 is an apocalyptic number.

82357664247 is a deficient number, since it is larger than the sum of its proper divisors (41023333129).

82357664247 is a wasteful number, since it uses less digits than its factorization.

82357664247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38369 (or 38357 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 54.

The spelling of 82357664247 in words is "eighty-two billion, three hundred fifty-seven million, six hundred sixty-four thousand, two hundred forty-seven".