84464664640415 has 32 divisors (see below), whose sum is σ = 108110739398400. Its totient is φ = 63167135834880.

The previous prime is 84464664640387. The next prime is 84464664640487. The reversal of 84464664640415 is 51404646646448.

It is not a de Polignac number, because 84464664640415 - 2¹⁸ = 84464664378271 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6021617 + ... + 14324426.

It is an arithmetic number, because the mean of its divisors is an integer number (3378460606200).

Almost surely, 2^{84464664640415} is an apocalyptic number.

84464664640415 is a deficient number, since it is larger than the sum of its proper divisors (23646074757985).

84464664640415 is a wasteful number, since it uses less digits than its factorization.

84464664640415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20346647.

The product of its (nonzero) digits is 212336640, while the sum is 62.

The spelling of 84464664640415 in words is "eighty-four trillion, four hundred sixty-four billion, six hundred sixty-four million, six hundred forty thousand, four hundred fifteen".