82440176678047 has 2 divisors, whose sum is σ = 82440176678048. Its totient is φ = 82440176678046.

The previous prime is 82440176678009. The next prime is 82440176678107. The reversal of 82440176678047 is 74087667104428.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82440176678047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82440176678047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82440176678647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41220088339023 + 41220088339024.

It is an arithmetic number, because the mean of its divisors is an integer number (41220088339024).

Almost surely, 2^{82440176678047} is an apocalyptic number.

82440176678047 is a deficient number, since it is larger than the sum of its proper divisors (1).

82440176678047 is an equidigital number, since it uses as much as digits as its factorization.

82440176678047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 101154816, while the sum is 64.

The spelling of 82440176678047 in words is "eighty-two trillion, four hundred forty billion, one hundred seventy-six million, six hundred seventy-eight thousand, forty-seven".