17791427845 has 16 divisors (see below), whose sum is σ = 21395407680. Its totient is φ = 14202720000.

The previous prime is 17791427839. The next prime is 17791427873. The reversal of 17791427845 is 54872419771.

It is not a de Polignac number, because 17791427845 - 2¹⁵ = 17791395077 is a prime.

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, 6309846 + ... + 6312664.

It is an arithmetic number, because the mean of its divisors is an integer number (1337212980).

Almost surely, 2^17791427845 is an apocalyptic number.

It is an amenable number.

17791427845 is a deficient number, since it is larger than the sum of its proper divisors (3603979835).

17791427845 is a wasteful number, since it uses less digits than its factorization.

17791427845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076.

The product of its digits is 3951360, while the sum is 55.

The spelling of 17791427845 in words is "seventeen billion, seven hundred ninety-one million, four hundred twenty-seven thousand, eight hundred forty-five".