12428697633 has 16 divisors (see below), whose sum is σ = 18168960000. Its totient is φ = 7494688080.

The previous prime is 12428697629. The next prime is 12428697643. The reversal of 12428697633 is 33679682421.

It is not a de Polignac number, because 12428697633 - 2² = 12428697629 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12428697643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939733 + ... + 952866.

It is an arithmetic number, because the mean of its divisors is an integer number (1135560000).

Almost surely, 2^12428697633 is an apocalyptic number.

It is an amenable number.

12428697633 is a deficient number, since it is larger than the sum of its proper divisors (5740262367).

12428697633 is a wasteful number, since it uses less digits than its factorization.

12428697633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892812.

The product of its digits is 2612736, while the sum is 51.

The spelling of 12428697633 in words is "twelve billion, four hundred twenty-eight million, six hundred ninety-seven thousand, six hundred thirty-three".