82644897146 has 64 divisors (see below), whose sum is σ = 155961676800. Its totient is φ = 32706535680.

The previous prime is 82644897107. The next prime is 82644897193. The reversal of 82644897146 is 64179844628.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 551231 + ... + 684941.

It is an arithmetic number, because the mean of its divisors is an integer number (2436901200).

Almost surely, 2^82644897146 is an apocalyptic number.

82644897146 is a deficient number, since it is larger than the sum of its proper divisors (73316779654).

82644897146 is a wasteful number, since it uses less digits than its factorization.

82644897146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133804 (or 133790 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 59.

The spelling of 82644897146 in words is "eighty-two billion, six hundred forty-four million, eight hundred ninety-seven thousand, one hundred forty-six".