80017000903 has 16 divisors (see below), whose sum is σ = 92171520000. Its totient is φ = 68044066272.

The previous prime is 80017000873. The next prime is 80017000909. The reversal of 80017000903 is 30900071008.

80017000903 is a nontrivial binomial coefficient, being equal to C(400043, 2).

It is not a de Polignac number, because 80017000903 - 2⁵ = 80017000871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80017000909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1371573 + ... + 1428721.

It is an arithmetic number, because the mean of its divisors is an integer number (5760720000).

Almost surely, 2^80017000903 is an apocalyptic number.

80017000903 is the 400042-nd triangular number.

80017000903 is the 133348-th centered nonagonal number.

80017000903 is a deficient number, since it is larger than the sum of its proper divisors (12154519097).

80017000903 is a wasteful number, since it uses less digits than its factorization.

80017000903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58734.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 80017000903 in words is "eighty billion, seventeen million, nine hundred three", and thus it is an aban number.