82228912577 has 20 divisors (see below), whose sum is σ = 99022565376. Its totient is φ = 68208252840.

The previous prime is 82228912567. The next prime is 82228912589. The reversal of 82228912577 is 77521982228.

It is not a de Polignac number, because 82228912577 - 2²⁴ = 82212135361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82228912567) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 477953 + ... + 626814.

Almost surely, 2^82228912577 is an apocalyptic number.

It is an amenable number.

82228912577 is a deficient number, since it is larger than the sum of its proper divisors (16793652799).

82228912577 is an equidigital number, since it uses as much as digits as its factorization.

82228912577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104826 (or 1104805 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 53.

The spelling of 82228912577 in words is "eighty-two billion, two hundred twenty-eight million, nine hundred twelve thousand, five hundred seventy-seven".