1113444619488 has 144 divisors (see below), whose sum is σ = 3276763425936. Its totient is φ = 358360104960.

The previous prime is 1113444619487. The next prime is 1113444619499. The reversal of 1113444619488 is 8849164443111.

1113444619488 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 4 + 446 + 194 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113444619487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 997120 + ... + 1794752.

It is an arithmetic number, because the mean of its divisors is an integer number (22755301569).

Almost surely, 2^{1113444619488} is an apocalyptic number.

1113444619488 is a gapful number since it is divisible by the number (18) 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 1113444619488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638381712968).

1113444619488 is an abundant number, since it is smaller than the sum of its proper divisors (2163318806448).

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

1113444619488 is a wasteful number, since it uses less digits than its factorization.

1113444619488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797817 (or 797806 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 1113444619488 in words is "one trillion, one hundred thirteen billion, four hundred forty-four million, six hundred nineteen thousand, four hundred eighty-eight".