17964251845 has 16 divisors (see below), whose sum is σ = 22301273088. Its totient is φ = 13877320320.

The previous prime is 17964251843. The next prime is 17964251873. The reversal of 17964251845 is 54815246971.

It is not a de Polignac number, because 17964251845 - 2¹ = 17964251843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17964251792 and 17964251801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17964251843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55969 + ... + 197638.

It is an arithmetic number, because the mean of its divisors is an integer number (1393829568).

Almost surely, 2^17964251845 is an apocalyptic number.

It is an amenable number.

17964251845 is a deficient number, since it is larger than the sum of its proper divisors (4337021243).

17964251845 is a wasteful number, since it uses less digits than its factorization.

17964251845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254100.

The product of its digits is 2419200, while the sum is 52.

The spelling of 17964251845 in words is "seventeen billion, nine hundred sixty-four million, two hundred fifty-one thousand, eight hundred forty-five".