251412105412 has 48 divisors (see below), whose sum is σ = 480809456512. Its totient is φ = 114326795520.

The previous prime is 251412105367. The next prime is 251412105431. The reversal of 251412105412 is 214501214152.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3636487 + ... + 3704977.

Almost surely, 2^251412105412 is an apocalyptic number.

It is an amenable number.

251412105412 is a deficient number, since it is larger than the sum of its proper divisors (229397351100).

251412105412 is a wasteful number, since it uses less digits than its factorization.

251412105412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69548 (or 69546 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 251412105412 its reverse (214501214152), we get a palindrome (465913319564).

The spelling of 251412105412 in words is "two hundred fifty-one billion, four hundred twelve million, one hundred five thousand, four hundred twelve".