11871223704 has 64 divisors (see below), whose sum is σ = 33346188000. Its totient is φ = 3912606720.

The previous prime is 11871223687. The next prime is 11871223733. The reversal of 11871223704 is 40732217811.

It is a super-2 number, since 2×11871223704² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 289537 + ... + 327984.

Almost surely, 2^11871223704 is an apocalyptic number.

It is an amenable number.

11871223704 is an abundant number, since it is smaller than the sum of its proper divisors (21474964296).

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

11871223704 is a wasteful number, since it uses less digits than its factorization.

11871223704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617625 (or 617615 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 11871223704 in words is "eleven billion, eight hundred seventy-one million, two hundred twenty-three thousand, seven hundred four".