111479239872 has 1764 divisors, whose sum is σ = 471442133568. Its totient is φ = 25866086400.

The previous prime is 111479239853. The next prime is 111479239889. The reversal of 111479239872 is 278932974111.

111479239872 is a `hidden beast` number, since 1 + 11 + 479 + 2 + 3 + 98 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (1764).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 251 ways as a sum of consecutive naturals, for example, 3596104497 + ... + 3596104527.

Almost surely, 2^111479239872 is an apocalyptic number.

111479239872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111479239872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235721066784).

111479239872 is an abundant number, since it is smaller than the sum of its proper divisors (359962893696).

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

111479239872 is a wasteful number, since it uses less digits than its factorization.

111479239872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 67 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The spelling of 111479239872 in words is "one hundred eleven billion, four hundred seventy-nine million, two hundred thirty-nine thousand, eight hundred seventy-two".