1091786094432 has 480 divisors, whose sum is σ = 3656698214400. Its totient is φ = 316551628800.

The previous prime is 1091786094407. The next prime is 1091786094433. The reversal of 1091786094432 is 2344906871901.

1091786094432 is a `hidden beast` number, since 10 + 9 + 17 + 8 + 609 + 4 + 4 + 3 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091786094433) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 78657669 + ... + 78671547.

It is an arithmetic number, because the mean of its divisors is an integer number (7618121280).

Almost surely, 2^{1091786094432} is an apocalyptic number.

1091786094432 is a gapful number since it is divisible by the number (12) 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 1091786094432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1828349107200).

1091786094432 is an abundant number, since it is smaller than the sum of its proper divisors (2564912119968).

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

1091786094432 is a wasteful number, since it uses less digits than its factorization.

1091786094432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14032 (or 14015 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 1091786094432 in words is "one trillion, ninety-one billion, seven hundred eighty-six million, ninety-four thousand, four hundred thirty-two".