12267397825 has 12 divisors (see below), whose sum is σ = 15582588588. Its totient is φ = 9574553600.

The previous prime is 12267397817. The next prime is 12267397837. The reversal of 12267397825 is 52879376221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5676718336 + 6590679489 = 75344^2 + 81183^2 .

It is not a de Polignac number, because 12267397825 - 2³ = 12267397817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5983072 + ... + 5985121.

It is an arithmetic number, because the mean of its divisors is an integer number (1298549049).

Almost surely, 2^12267397825 is an apocalyptic number.

It is an amenable number.

12267397825 is a deficient number, since it is larger than the sum of its proper divisors (3315190763).

12267397825 is a wasteful number, since it uses less digits than its factorization.

12267397825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11968244 (or 11968239 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 52.

The spelling of 12267397825 in words is "twelve billion, two hundred sixty-seven million, three hundred ninety-seven thousand, eight hundred twenty-five".