16903782791 has 12 divisors (see below), whose sum is σ = 20081960928. Its totient is φ = 14180679072.

The previous prime is 16903782781. The next prime is 16903782809. The reversal of 16903782791 is 19728730961.

It is a de Polignac number, because none of the positive numbers 2^k-16903782791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16903782781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3667646 + ... + 3672251.

It is an arithmetic number, because the mean of its divisors is an integer number (1673496744).

Almost surely, 2^16903782791 is an apocalyptic number.

16903782791 is a deficient number, since it is larger than the sum of its proper divisors (3178178137).

16903782791 is an equidigital number, since it uses as much as digits as its factorization.

16903782791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339958 (or 7339951 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 16903782791 in words is "sixteen billion, nine hundred three million, seven hundred eighty-two thousand, seven hundred ninety-one".