1868271999264 has 192 divisors, whose sum is σ = 6041954540160. Its totient is φ = 556861824000.

The previous prime is 1868271999259. The next prime is 1868271999343. The reversal of 1868271999264 is 4629991728681.

1868271999264 is a `hidden beast` number, since 1 + 8 + 6 + 8 + 271 + 9 + 99 + 264 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 1868271999192 and 1868271999201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1031547 + ... + 2191034.

It is an arithmetic number, because the mean of its divisors is an integer number (31468513230).

Almost surely, 2^{1868271999264} is an apocalyptic number.

It is an amenable number.

1868271999264 is an abundant number, since it is smaller than the sum of its proper divisors (4173682540896).

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

1868271999264 is a wasteful number, since it uses less digits than its factorization.

1868271999264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222672 (or 3222658 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 72.

The spelling of 1868271999264 in words is "one trillion, eight hundred sixty-eight billion, two hundred seventy-one million, nine hundred ninety-nine thousand, two hundred sixty-four".