1099742883840 has 624 divisors, whose sum is σ = 3984484821408. Its totient is φ = 290943664128.

The previous prime is 1099742883821. The next prime is 1099742883857. The reversal of 1099742883840 is 483882479901.

1099742883840 is a `hidden beast` number, since 1 + 0 + 9 + 97 + 428 + 83 + 8 + 40 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 681798874 + ... + 681800486.

It is an arithmetic number, because the mean of its divisors is an integer number (6385392342).

Almost surely, 2^{1099742883840} is an apocalyptic number.

1099742883840 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 1099742883840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1992242410704).

1099742883840 is an abundant number, since it is smaller than the sum of its proper divisors (2884741937568).

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

1099742883840 is an equidigital number, since it uses as much as digits as its factorization.

1099742883840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 1099742883840 in words is "one trillion, ninety-nine billion, seven hundred forty-two million, eight hundred eighty-three thousand, eight hundred forty".