111774645444 has 384 divisors, whose sum is σ = 359409254400. Its totient is φ = 26165980800.

The previous prime is 111774645427. The next prime is 111774645473. The reversal of 111774645444 is 444546477111.

It is a junction number, because it is equal to n+sod(n) for n = 111774645393 and 111774645402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1894485487 + ... + 1894485545.

It is an arithmetic number, because the mean of its divisors is an integer number (935961600).

Almost surely, 2^111774645444 is an apocalyptic number.

111774645444 is a gapful number since it is divisible by the number (14) 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 111774645444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179704627200).

111774645444 is an abundant number, since it is smaller than the sum of its proper divisors (247634608956).

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

111774645444 is a wasteful number, since it uses less digits than its factorization.

111774645444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 132 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 48.

The spelling of 111774645444 in words is "one hundred eleven billion, seven hundred seventy-four million, six hundred forty-five thousand, four hundred forty-four".