111798878400 has 1344 divisors, whose sum is σ = 475131018240. Its totient is φ = 25303449600.

The previous prime is 111798878381. The next prime is 111798878441. The reversal of 111798878400 is 4878897111.

It is a super-2 number, since 2×111798878400² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 579268704 + ... + 579268896.

Almost surely, 2^111798878400 is an apocalyptic number.

111798878400 is a gapful number since it is divisible by the number (10) 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 111798878400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237565509120).

111798878400 is an abundant number, since it is smaller than the sum of its proper divisors (363332139840).

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

111798878400 is a wasteful number, since it uses less digits than its factorization.

111798878400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 54.

The spelling of 111798878400 in words is "one hundred eleven billion, seven hundred ninety-eight million, eight hundred seventy-eight thousand, four hundred".