1111381286400 has 1440 divisors, whose sum is σ = 4986805824000. Its totient is φ = 229633228800.

The previous prime is 1111381286381. The next prime is 1111381286441. The reversal of 1111381286400 is 46821831111.

1111381286400 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 3 + 8 + 1 + 2 + 8 + 640 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3095769421 + ... + 3095769779.

It is an arithmetic number, because the mean of its divisors is an integer number (3463059600).

Almost surely, 2^{1111381286400} is an apocalyptic number.

1111381286400 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 1111381286400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2493402912000).

1111381286400 is an abundant number, since it is smaller than the sum of its proper divisors (3875424537600).

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

1111381286400 is a wasteful number, since it uses less digits than its factorization.

1111381286400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 1111381286400 in words is "one trillion, one hundred eleven billion, three hundred eighty-one million, two hundred eighty-six thousand, four hundred".