18601149912 has 32 divisors (see below), whose sum is σ = 46513881600. Its totient is φ = 6198915744.

The previous prime is 18601149911. The next prime is 18601149923. The reversal of 18601149912 is 21994110681.

It is a super-3 number, since 3×18601149912³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18601149911) 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, 14289 + ... + 193407.

It is an arithmetic number, because the mean of its divisors is an integer number (1453558800).

Almost surely, 2^18601149912 is an apocalyptic number.

18601149912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18601149912 is an abundant number, since it is smaller than the sum of its proper divisors (27912731688).

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

18601149912 is a wasteful number, since it uses less digits than its factorization.

18601149912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183455 (or 183451 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The spelling of 18601149912 in words is "eighteen billion, six hundred one million, one hundred forty-nine thousand, nine hundred twelve".