86404311340447 has 2 divisors, whose sum is σ = 86404311340448. Its totient is φ = 86404311340446.

The previous prime is 86404311340441. The next prime is 86404311340541. The reversal of 86404311340447 is 74404311340468.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86404311340447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86404311340447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86404311340441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43202155670223 + 43202155670224.

It is an arithmetic number, because the mean of its divisors is an integer number (43202155670224).

Almost surely, 2^{86404311340447} is an apocalyptic number.

86404311340447 is a deficient number, since it is larger than the sum of its proper divisors (1).

86404311340447 is an equidigital number, since it uses as much as digits as its factorization.

86404311340447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 86404311340447 in words is "eighty-six trillion, four hundred four billion, three hundred eleven million, three hundred forty thousand, four hundred forty-seven".