12381578375 has 8 divisors (see below), whose sum is σ = 15452209968. Its totient is φ = 9905262600.

The previous prime is 12381578371. The next prime is 12381578381. The reversal of 12381578375 is 57387518321.

It is not a de Polignac number, because 12381578375 - 2² = 12381578371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381578371) 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, 49526189 + ... + 49526438.

It is an arithmetic number, because the mean of its divisors is an integer number (1931526246).

Almost surely, 2^12381578375 is an apocalyptic number.

12381578375 is a deficient number, since it is larger than the sum of its proper divisors (3070631593).

12381578375 is an frugal number, since it uses more digits than its factorization.

12381578375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99052642 (or 99052632 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 50.

The spelling of 12381578375 in words is "twelve billion, three hundred eighty-one million, five hundred seventy-eight thousand, three hundred seventy-five".