82316644478642 has 16 divisors (see below), whose sum is σ = 141441658935552. Its totient is φ = 35196709104960.

The previous prime is 82316644478641. The next prime is 82316644478669. The reversal of 82316644478642 is 24687444661328.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (82316644478641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6821061623 + ... + 6821073690.

It is an arithmetic number, because the mean of its divisors is an integer number (8840103683472).

Almost surely, 2^{82316644478642} is an apocalyptic number.

82316644478642 is a deficient number, since it is larger than the sum of its proper divisors (59125014456910).

82316644478642 is a wasteful number, since it uses less digits than its factorization.

82316644478642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13642135753.

The product of its digits is 297271296, while the sum is 65.

The spelling of 82316644478642 in words is "eighty-two trillion, three hundred sixteen billion, six hundred forty-four million, four hundred seventy-eight thousand, six hundred forty-two".