1099239427328 has 72 divisors (see below), whose sum is σ = 2655148249152. Its totient is φ = 443390681088.

The previous prime is 1099239427327. The next prime is 1099239427337. The reversal of 1099239427328 is 8237249329901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099239427327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18011150 + ... + 18072077.

It is an arithmetic number, because the mean of its divisors is an integer number (36877059016).

Almost surely, 2^{1099239427328} is an apocalyptic number.

It is an amenable number.

1099239427328 is an abundant number, since it is smaller than the sum of its proper divisors (1555908821824).

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

1099239427328 is an equidigital number, since it uses as much as digits as its factorization.

1099239427328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36083267 (or 36083253 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 1099239427328 in words is "one trillion, ninety-nine billion, two hundred thirty-nine million, four hundred twenty-seven thousand, three hundred twenty-eight".