18427314889 has 8 divisors (see below), whose sum is σ = 18800701920. Its totient is φ = 18055963296.

The previous prime is 18427314887. The next prime is 18427314931. The reversal of 18427314889 is 98841372481.

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 18427314889 - 2¹ = 18427314887 is a prime.

It is a super-2 number, since 2×18427314889² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18427314881) 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, 490564 + ... + 526789.

It is an arithmetic number, because the mean of its divisors is an integer number (2350087740).

Almost surely, 2^18427314889 is an apocalyptic number.

It is an amenable number.

18427314889 is a deficient number, since it is larger than the sum of its proper divisors (373387031).

18427314889 is a wasteful number, since it uses less digits than its factorization.

18427314889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017719.

The product of its digits is 3096576, while the sum is 55.

The spelling of 18427314889 in words is "eighteen billion, four hundred twenty-seven million, three hundred fourteen thousand, eight hundred eighty-nine".