1089994752000 has 1472 divisors, whose sum is σ = 5025111137280. Its totient is φ = 226492416000.

The previous prime is 1089994751983. The next prime is 1089994752019. The reversal of 1089994752000 is 2574999801.

1089994752000 is a `hidden beast` number, since 1 + 0 + 89 + 99 + 475 + 2 + 0 + 0 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99090431995 + ... + 99090432005.

Almost surely, 2^{1089994752000} is an apocalyptic number.

1089994752000 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 1089994752000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2512555568640).

1089994752000 is an abundant number, since it is smaller than the sum of its proper divisors (3935116385280).

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

1089994752000 is an frugal number, since it uses more digits than its factorization.

1089994752000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 1089994752000 in words is "one trillion, eighty-nine billion, nine hundred ninety-four million, seven hundred fifty-two thousand".