1089794939903 has 4 divisors (see below), whose sum is σ = 1103589812640. Its totient is φ = 1076000067168.

The previous prime is 1089794939899. The next prime is 1089794939921. The reversal of 1089794939903 is 3099394979801.

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

It is a cyclic number.

It is not a de Polignac number, because 1089794939903 - 2² = 1089794939899 is a prime.

It is a super-2 number, since 2×1089794939903² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089764939903) 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, 6897436250 + ... + 6897436407.

It is an arithmetic number, because the mean of its divisors is an integer number (275897453160).

Almost surely, 2^{1089794939903} is an apocalyptic number.

1089794939903 is a deficient number, since it is larger than the sum of its proper divisors (13794872737).

1089794939903 is an equidigital number, since it uses as much as digits as its factorization.

1089794939903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13794872736.

The product of its (nonzero) digits is 119042784, while the sum is 71.

The spelling of 1089794939903 in words is "one trillion, eighty-nine billion, seven hundred ninety-four million, nine hundred thirty-nine thousand, nine hundred three".