12390194880 has 504 divisors, whose sum is σ = 52195506480. Its totient is φ = 2682408960.

The previous prime is 12390194857. The next prime is 12390194891. The reversal of 12390194880 is 8849109321.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2678970 + ... + 2683590.

Almost surely, 2^12390194880 is an apocalyptic number.

12390194880 is a gapful number since it is divisible by the number (10) 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 12390194880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26097753240).

12390194880 is an abundant number, since it is smaller than the sum of its proper divisors (39805311600).

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

12390194880 is a wasteful number, since it uses less digits than its factorization.

12390194880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677 (or 4657 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 12390194880 in words is "twelve billion, three hundred ninety million, one hundred ninety-four thousand, eight hundred eighty".