82646864628 has 48 divisors (see below), whose sum is σ = 199905741504. Its totient is φ = 26553864960.

The previous prime is 82646864567. The next prime is 82646864647.

It is a happy number.

82646864628 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822313 + ... + 917328.

It is an arithmetic number, because the mean of its divisors is an integer number (4164702948).

Almost surely, 2^82646864628 is an apocalyptic number.

It is an amenable number.

82646864628 is an abundant number, since it is smaller than the sum of its proper divisors (117258876876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82646864628 is a wasteful number, since it uses less digits than its factorization.

82646864628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739792 (or 1739790 counting only the distinct ones).

The product of its digits is 42467328, while the sum is 60.

The spelling of 82646864628 in words is "eighty-two billion, six hundred forty-six million, eight hundred sixty-four thousand, six hundred twenty-eight".