82672563475557 has 48 divisors (see below), whose sum is σ = 135106843015872. Its totient is φ = 50100860689920.

The previous prime is 82672563475477. The next prime is 82672563475559. The reversal of 82672563475557 is 75557436527628.

82672563475557 is a `hidden beast` number, since 8 + 2 + 6 + 7 + 2 + 5 + 63 + 4 + 7 + 5 + 557 = 666.

It is not a de Polignac number, because 82672563475557 - 2¹⁴ = 82672563459173 is a prime.

It is a super-2 number, since 2×82672563475557² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82672563475559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35042023 + ... + 37326779.

It is an arithmetic number, because the mean of its divisors is an integer number (2814725896164).

Almost surely, 2^{82672563475557} is an apocalyptic number.

It is an amenable number.

82672563475557 is a deficient number, since it is larger than the sum of its proper divisors (52434279540315).

82672563475557 is a wasteful number, since it uses less digits than its factorization.

82672563475557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298320 (or 2298308 counting only the distinct ones).

The product of its digits is 2963520000, while the sum is 72.

The spelling of 82672563475557 in words is "eighty-two trillion, six hundred seventy-two billion, five hundred sixty-three million, four hundred seventy-five thousand, five hundred fifty-seven".