18879471365 has 8 divisors (see below), whose sum is σ = 22818354720. Its totient is φ = 14994917712.

The previous prime is 18879471361. The next prime is 18879471383. The reversal of 18879471365 is 56317497881.

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

It is a cyclic number.

It is not a de Polignac number, because 18879471365 - 2² = 18879471361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18879471361) 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, 13581659 + ... + 13583048.

It is an arithmetic number, because the mean of its divisors is an integer number (2852294340).

Almost surely, 2^18879471365 is an apocalyptic number.

It is an amenable number.

18879471365 is a deficient number, since it is larger than the sum of its proper divisors (3938883355).

18879471365 is a wasteful number, since it uses less digits than its factorization.

18879471365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27164851.

The product of its digits is 10160640, while the sum is 59.

The spelling of 18879471365 in words is "eighteen billion, eight hundred seventy-nine million, four hundred seventy-one thousand, three hundred sixty-five".