12345044992 has 104 divisors (see below), whose sum is σ = 28301018976. Its totient is φ = 5274402816.

The previous prime is 12345044977. The next prime is 12345044993. The reversal of 12345044992 is 29944054321.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345044993) 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, 15969918 + ... + 15970690.

Almost surely, 2^12345044992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12345044992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14150509488).

12345044992 is an abundant number, since it is smaller than the sum of its proper divisors (15955973984).

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

12345044992 is an frugal number, since it uses more digits than its factorization.

12345044992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 12345044992 in words is "twelve billion, three hundred forty-five million, forty-four thousand, nine hundred ninety-two".