12924943425 has 36 divisors (see below), whose sum is σ = 23161630284. Its totient is φ = 6889843200.

The previous prime is 12924943417. The next prime is 12924943433. The reversal of 12924943425 is 52434942921.

12924943425 is a `hidden beast` number, since 129 + 2 + 494 + 34 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (12924943417) and next prime (12924943433).

It can be written as a sum of positive squares in 6 ways, for example, as 6462230544 + 6462712881 = 80388^2 + 80391^2 .

It is not a de Polignac number, because 12924943425 - 2³ = 12924943417 is a prime.

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, 471085 + ... + 497765.

It is an arithmetic number, because the mean of its divisors is an integer number (643378619).

Almost surely, 2^12924943425 is an apocalyptic number.

12924943425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12924943425 is a deficient number, since it is larger than the sum of its proper divisors (10236686859).

12924943425 is a wasteful number, since it uses less digits than its factorization.

12924943425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28850 (or 28842 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 12924943425 in words is "twelve billion, nine hundred twenty-four million, nine hundred forty-three thousand, four hundred twenty-five".