18693344604 has 24 divisors (see below), whose sum is σ = 47583059328. Its totient is φ = 5664649840.

The previous prime is 18693344603. The next prime is 18693344629. The reversal of 18693344604 is 40644339681.

It is a super-2 number, since 2×18693344604² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18693344603) 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, 70807992 + ... + 70808255.

It is an arithmetic number, because the mean of its divisors is an integer number (1982627472).

Almost surely, 2^18693344604 is an apocalyptic number.

It is an amenable number.

18693344604 is an abundant number, since it is smaller than the sum of its proper divisors (28889714724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18693344604 is a wasteful number, since it uses less digits than its factorization.

18693344604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141616265 (or 141616263 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 18693344604 in words is "eighteen billion, six hundred ninety-three million, three hundred forty-four thousand, six hundred four".