82315512644 has 12 divisors (see below), whose sum is σ = 144074385168. Its totient is φ = 41151402600.

The previous prime is 82315512641. The next prime is 82315512649. The reversal of 82315512644 is 44621551328.

It is not an unprimeable number, because it can be changed into a prime (82315512641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1559222 + ... + 1611149.

It is an arithmetic number, because the mean of its divisors is an integer number (12006198764).

Almost surely, 2^82315512644 is an apocalyptic number.

It is an amenable number.

82315512644 is a deficient number, since it is larger than the sum of its proper divisors (61758872524).

82315512644 is a wasteful number, since it uses less digits than its factorization.

82315512644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176866 (or 3176864 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The spelling of 82315512644 in words is "eighty-two billion, three hundred fifteen million, five hundred twelve thousand, six hundred forty-four".