17859800545 has 8 divisors (see below), whose sum is σ = 21432640320. Its totient is φ = 14287254000.

The previous prime is 17859800537. The next prime is 17859800549. The reversal of 17859800545 is 54500895871.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 17859800545 - 2³ = 17859800537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17859800492 and 17859800501.

It is not an unprimeable number, because it can be changed into a prime (17859800549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96420 + ... + 212170.

It is an arithmetic number, because the mean of its divisors is an integer number (2679080040).

Almost surely, 2^17859800545 is an apocalyptic number.

It is an amenable number.

17859800545 is a deficient number, since it is larger than the sum of its proper divisors (3572839775).

17859800545 is a wasteful number, since it uses less digits than its factorization.

17859800545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146615.

The product of its (nonzero) digits is 2016000, while the sum is 52.

The spelling of 17859800545 in words is "seventeen billion, eight hundred fifty-nine million, eight hundred thousand, five hundred forty-five".