18712601412 has 24 divisors (see below), whose sum is σ = 43888973856. Its totient is φ = 6205214208.

The previous prime is 18712601399. The next prime is 18712601419. The reversal of 18712601412 is 21410621781.

It is a super-2 number, since 2×18712601412² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18712601419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4037538 + ... + 4042169.

It is an arithmetic number, because the mean of its divisors is an integer number (1828707244).

Almost surely, 2^18712601412 is an apocalyptic number.

18712601412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18712601412 is an abundant number, since it is smaller than the sum of its proper divisors (25176372444).

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

18712601412 is a wasteful number, since it uses less digits than its factorization.

18712601412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8079907 (or 8079905 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The spelling of 18712601412 in words is "eighteen billion, seven hundred twelve million, six hundred one thousand, four hundred twelve".