86278776644875 has 16 divisors (see below), whose sum is σ = 107685956510496. Its totient is φ = 69016583330400.

The previous prime is 86278776644849. The next prime is 86278776644881. The reversal of 86278776644875 is 57844667787268.

It is not a de Polignac number, because 86278776644875 - 2⁹ = 86278776644363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86278776644792 and 86278776644801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30844192 + ... + 33524941.

It is an arithmetic number, because the mean of its divisors is an integer number (6730372281906).

Almost surely, 2^{86278776644875} is an apocalyptic number.

86278776644875 is a deficient number, since it is larger than the sum of its proper divisors (21407179865621).

86278776644875 is a wasteful number, since it uses less digits than its factorization.

86278776644875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64379871 (or 64379861 counting only the distinct ones).

The product of its digits is 42485022720, while the sum is 85.

The spelling of 86278776644875 in words is "eighty-six trillion, two hundred seventy-eight billion, seven hundred seventy-six million, six hundred forty-four thousand, eight hundred seventy-five".