111774009840 has 80 divisors (see below), whose sum is σ = 348313706496. Its totient is φ = 29650336000.

The previous prime is 111774009833. The next prime is 111774009863. The reversal of 111774009840 is 48900477111.

111774009840 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 111774009792 and 111774009801.

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, 1173336 + ... + 1265015.

Almost surely, 2^111774009840 is an apocalyptic number.

111774009840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111774009840 is an abundant number, since it is smaller than the sum of its proper divisors (236539696656).

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

111774009840 is a wasteful number, since it uses less digits than its factorization.

111774009840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438558 (or 2438552 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The spelling of 111774009840 in words is "one hundred eleven billion, seven hundred seventy-four million, nine thousand, eight hundred forty".