12379449600 has 324 divisors, whose sum is σ = 50583734656. Its totient is φ = 2829496320.

The previous prime is 12379449583. The next prime is 12379449619. The reversal of 12379449600 is 694497321.

It is a happy number.

12379449600 is a `hidden beast` number, since 1 + 2 + 37 + 9 + 4 + 4 + 9 + 600 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 387849 + ... + 418551.

Almost surely, 2^12379449600 is an apocalyptic number.

12379449600 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 12379449600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25291867328).

12379449600 is an abundant number, since it is smaller than the sum of its proper divisors (38204285056).

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

12379449600 is a wasteful number, since it uses less digits than its factorization.

12379449600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30742 (or 30720 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 12379449600 in words is "twelve billion, three hundred seventy-nine million, four hundred forty-nine thousand, six hundred".