11687555803864 has 16 divisors (see below), whose sum is σ = 22866957007920. Its totient is φ = 5589700601760.

The previous prime is 11687555803823. The next prime is 11687555803939. The reversal of 11687555803864 is 46830855578611.

It is a super-3 number, since 3×11687555803864³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11687555803864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31759662327 + ... + 31759662694.

It is an arithmetic number, because the mean of its divisors is an integer number (1429184812995).

Almost surely, 2^{11687555803864} is an apocalyptic number.

It is an amenable number.

11687555803864 is a deficient number, since it is larger than the sum of its proper divisors (11179401204056).

11687555803864 is a wasteful number, since it uses less digits than its factorization.

11687555803864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63519325050 (or 63519325046 counting only the distinct ones).

The product of its (nonzero) digits is 193536000, while the sum is 67.

The spelling of 11687555803864 in words is "eleven trillion, six hundred eighty-seven billion, five hundred fifty-five million, eight hundred three thousand, eight hundred sixty-four".