17431000447 has 24 divisors (see below), whose sum is σ = 20982894720. Its totient is φ = 14423028480.

The previous prime is 17431000423. The next prime is 17431000471. The reversal of 17431000447 is 74400013471.

It is an interprime number because it is at equal distance from previous prime (17431000423) and next prime (17431000471).

It is not a de Polignac number, because 17431000447 - 2⁷ = 17431000319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17431000487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 607243 + ... + 635299.

It is an arithmetic number, because the mean of its divisors is an integer number (874287280).

Almost surely, 2^17431000447 is an apocalyptic number.

17431000447 is a deficient number, since it is larger than the sum of its proper divisors (3551894273).

17431000447 is a wasteful number, since it uses less digits than its factorization.

17431000447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28511 (or 28504 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 17431000447 in words is "seventeen billion, four hundred thirty-one million, four hundred forty-seven", and thus it is an aban number.