17875394645 has 16 divisors (see below), whose sum is σ = 21798614208. Its totient is φ = 14068771200.

The previous prime is 17875394639. The next prime is 17875394657. The reversal of 17875394645 is 54649357871.

It is not a de Polignac number, because 17875394645 - 2¹² = 17875390549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229745 + ... + 297545.

It is an arithmetic number, because the mean of its divisors is an integer number (1362413388).

Almost surely, 2^17875394645 is an apocalyptic number.

It is an amenable number.

17875394645 is a deficient number, since it is larger than the sum of its proper divisors (3923219563).

17875394645 is an equidigital number, since it uses as much as digits as its factorization.

17875394645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68660.

The product of its digits is 25401600, while the sum is 59.

The spelling of 17875394645 in words is "seventeen billion, eight hundred seventy-five million, three hundred ninety-four thousand, six hundred forty-five".