86919005761812 has 72 divisors (see below), whose sum is σ = 251100644174016. Its totient is φ = 24833873649024.

The previous prime is 86919005761727. The next prime is 86919005761829. The reversal of 86919005761812 is 21816750091968.

86919005761812 is a `hidden beast` number, since 8 + 6 + 9 + 1 + 9 + 0 + 0 + 5 + 7 + 618 + 1 + 2 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 86919005761812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55079523 + ... + 56635605.

Almost surely, 2^{86919005761812} is an apocalyptic number.

It is an amenable number.

86919005761812 is an abundant number, since it is smaller than the sum of its proper divisors (164181638412204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86919005761812 is a wasteful number, since it uses less digits than its factorization.

86919005761812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777757 (or 1777752 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 63.

The spelling of 86919005761812 in words is "eighty-six trillion, nine hundred nineteen billion, five million, seven hundred sixty-one thousand, eight hundred twelve".