12918373692 has 48 divisors (see below), whose sum is σ = 35560261632. Its totient is φ = 3571899840.

The previous prime is 12918373691. The next prime is 12918373709. The reversal of 12918373692 is 29637381921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12918373691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2477883 + ... + 2483090.

It is an arithmetic number, because the mean of its divisors is an integer number (740838784).

Almost surely, 2^12918373692 is an apocalyptic number.

12918373692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12918373692 is an abundant number, since it is smaller than the sum of its proper divisors (22641887940).

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

12918373692 is a wasteful number, since it uses less digits than its factorization.

12918373692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4961018 (or 4961016 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The spelling of 12918373692 in words is "twelve billion, nine hundred eighteen million, three hundred seventy-three thousand, six hundred ninety-two".