18974331169 has 8 divisors (see below), whose sum is σ = 19626312960. Its totient is φ = 18324843600.

The previous prime is 18974331119. The next prime is 18974331199. The reversal of 18974331169 is 96113347981.

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 18974331169 - 2⁷ = 18974331041 is a prime.

It is a super-2 number, since 2×18974331169² (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 (18974331119) 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, 608074 + ... + 638515.

It is an arithmetic number, because the mean of its divisors is an integer number (2453289120).

Almost surely, 2^18974331169 is an apocalyptic number.

It is an amenable number.

18974331169 is a deficient number, since it is larger than the sum of its proper divisors (651981791).

18974331169 is a wasteful number, since it uses less digits than its factorization.

18974331169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247111.

The product of its digits is 979776, while the sum is 52.

The spelling of 18974331169 in words is "eighteen billion, nine hundred seventy-four million, three hundred thirty-one thousand, one hundred sixty-nine".