1109845492875 has 128 divisors (see below), whose sum is σ = 2374810214400. Its totient is φ = 500934844800.

The previous prime is 1109845492871. The next prime is 1109845492907. The reversal of 1109845492875 is 5782945489011.

1109845492875 is a `hidden beast` number, since 1 + 1 + 0 + 9 + 8 + 4 + 549 + 2 + 87 + 5 = 666.

It is not a de Polignac number, because 1109845492875 - 2² = 1109845492871 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1109845492871) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1569049 + ... + 2163701.

It is an arithmetic number, because the mean of its divisors is an integer number (18553204800).

Almost surely, 2^{1109845492875} is an apocalyptic number.

1109845492875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1109845492875 is an abundant number, since it is smaller than the sum of its proper divisors (1264964721525).

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

1109845492875 is an equidigital number, since it uses as much as digits as its factorization.

1109845492875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594763 (or 594747 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 63.

The spelling of 1109845492875 in words is "one trillion, one hundred nine billion, eight hundred forty-five million, four hundred ninety-two thousand, eight hundred seventy-five".