84910077865 has 16 divisors (see below), whose sum is σ = 103725432000. Its totient is φ = 66711965760.

The previous prime is 84910077859. The next prime is 84910077877. The reversal of 84910077865 is 56877001948.

It is not a de Polignac number, because 84910077865 - 2²⁷ = 84775860137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271990 + ... + 493759.

It is an arithmetic number, because the mean of its divisors is an integer number (6482839500).

Almost surely, 2^84910077865 is an apocalyptic number.

It is an amenable number.

84910077865 is a deficient number, since it is larger than the sum of its proper divisors (18815354135).

84910077865 is a wasteful number, since it uses less digits than its factorization.

84910077865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766152.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 84910077865 in words is "eighty-four billion, nine hundred ten million, seventy-seven thousand, eight hundred sixty-five".