11905203087864 has 48 divisors (see below), whose sum is σ = 34139920623120. Its totient is φ = 3734965674240.

The previous prime is 11905203087853. The next prime is 11905203087917. The reversal of 11905203087864 is 46878030250911.

11905203087864 is a `hidden beast` number, since 1 + 1 + 9 + 0 + 520 + 30 + 8 + 7 + 86 + 4 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11905203087864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4863235332 + ... + 4863237779.

It is an arithmetic number, because the mean of its divisors is an integer number (711248346315).

It is a 1-persistent number, because it is pandigital, but 2⋅11905203087864 = 23810406175728 is not.

Almost surely, 2^{11905203087864} is an apocalyptic number.

It is an amenable number.

11905203087864 is an abundant number, since it is smaller than the sum of its proper divisors (22234717535256).

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

11905203087864 is a wasteful number, since it uses less digits than its factorization.

11905203087864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9726473140 (or 9726473133 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 11905203087864 in words is "eleven trillion, nine hundred five billion, two hundred three million, eighty-seven thousand, eight hundred sixty-four".