12402631424 has 18 divisors (see below), whose sum is σ = 24756815580. Its totient is φ = 6201315584.

The previous prime is 12402631393. The next prime is 12402631433. The reversal of 12402631424 is 42413620421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24223634 + ... + 24224145.

Almost surely, 2^12402631424 is an apocalyptic number.

It is an amenable number.

12402631424 is a deficient number, since it is larger than the sum of its proper divisors (12354184156).

12402631424 is an frugal number, since it uses more digits than its factorization.

12402631424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48447795 (or 48447781 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The spelling of 12402631424 in words is "twelve billion, four hundred two million, six hundred thirty-one thousand, four hundred twenty-four".