1100794025491 has 4 divisors (see below), whose sum is σ = 1106497621672. Its totient is φ = 1095090429312.

The previous prime is 1100794025479. The next prime is 1100794025503. The reversal of 1100794025491 is 1945204970011.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1100794025479) and next prime (1100794025503).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100794025491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100794025411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2851797801 + ... + 2851798186.

It is an arithmetic number, because the mean of its divisors is an integer number (276624405418).

Almost surely, 2^{1100794025491} is an apocalyptic number.

1100794025491 is a deficient number, since it is larger than the sum of its proper divisors (5703596181).

1100794025491 is an equidigital number, since it uses as much as digits as its factorization.

1100794025491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703596180.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 1100794025491 in words is "one trillion, one hundred billion, seven hundred ninety-four million, twenty-five thousand, four hundred ninety-one".