12378458925 has 36 divisors (see below), whose sum is σ = 25338512160. Its totient is φ = 5658723360.

The previous prime is 12378458923. The next prime is 12378458927. The reversal of 12378458925 is 52985487321.

12378458925 is a `hidden beast` number, since 1 + 2 + 37 + 8 + 4 + 589 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (12378458923) and next prime (12378458927).

It is not a de Polignac number, because 12378458925 - 2¹ = 12378458923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12378458923) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3928095 + ... + 3931244.

It is an arithmetic number, because the mean of its divisors is an integer number (703847560).

Almost surely, 2^12378458925 is an apocalyptic number.

12378458925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12378458925 is an abundant number, since it is smaller than the sum of its proper divisors (12960053235).

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

12378458925 is a wasteful number, since it uses less digits than its factorization.

12378458925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7859362 (or 7859354 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 12378458925 in words is "twelve billion, three hundred seventy-eight million, four hundred fifty-eight thousand, nine hundred twenty-five".