12378202992 has 120 divisors (see below), whose sum is σ = 36684735360. Its totient is φ = 3885356160.

The previous prime is 12378202961. The next prime is 12378203017. The reversal of 12378202992 is 29920287321.

It is a happy number.

It is a super-2 number, since 2×12378202992² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443367 + ... + 470457.

It is an arithmetic number, because the mean of its divisors is an integer number (305706128).

Almost surely, 2^12378202992 is an apocalyptic number.

12378202992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12378202992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18342367680).

12378202992 is an abundant number, since it is smaller than the sum of its proper divisors (24306532368).

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

12378202992 is a wasteful number, since it uses less digits than its factorization.

12378202992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27291 (or 27282 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 12378202992 in words is "twelve billion, three hundred seventy-eight million, two hundred two thousand, nine hundred ninety-two".