18197344704 has 112 divisors (see below), whose sum is σ = 60027653376. Its totient is φ = 4726579200.

The previous prime is 18197344661. The next prime is 18197344717. The reversal of 18197344704 is 40744379181.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×18197344704² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600657 + ... + 630224.

Almost surely, 2^18197344704 is an apocalyptic number.

18197344704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18197344704 is an abundant number, since it is smaller than the sum of its proper divisors (41830308672).

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

18197344704 is a wasteful number, since it uses less digits than its factorization.

18197344704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230914 (or 1230904 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 18197344704 in words is "eighteen billion, one hundred ninety-seven million, three hundred forty-four thousand, seven hundred four".