17948430065 has 16 divisors (see below), whose sum is σ = 22537468416. Its totient is φ = 13705200000.

The previous prime is 17948430053. The next prime is 17948430089. The reversal of 17948430065 is 56003484971.

It is not a de Polignac number, because 17948430065 - 2¹² = 17948425969 is a prime.

It is a super-2 number, since 2×17948430065² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 781811 + ... + 804440.

It is an arithmetic number, because the mean of its divisors is an integer number (1408591776).

Almost surely, 2^17948430065 is an apocalyptic number.

It is an amenable number.

17948430065 is a deficient number, since it is larger than the sum of its proper divisors (4589038351).

17948430065 is a wasteful number, since it uses less digits than its factorization.

17948430065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586360.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 17948430065 in words is "seventeen billion, nine hundred forty-eight million, four hundred thirty thousand, sixty-five".