12380497920 has 384 divisors, whose sum is σ = 50303635200. Its totient is φ = 2829385728.

The previous prime is 12380497879. The next prime is 12380497939. The reversal of 12380497920 is 2979408321.

It is a tau number, because it is divible by the number of its divisors (384).

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 31 ways as a sum of consecutive naturals, for example, 1932162 + ... + 1938558.

It is an arithmetic number, because the mean of its divisors is an integer number (130999050).

Almost surely, 2^12380497920 is an apocalyptic number.

12380497920 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 12380497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25151817600).

12380497920 is an abundant number, since it is smaller than the sum of its proper divisors (37923137280).

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

12380497920 is an equidigital number, since it uses as much as digits as its factorization.

12380497920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440 (or 6414 counting only the distinct ones).

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

The spelling of 12380497920 in words is "twelve billion, three hundred eighty million, four hundred ninety-seven thousand, nine hundred twenty".