12451434634 has 16 divisors (see below), whose sum is σ = 18757657800. Its totient is φ = 6198902784.

The previous prime is 12451434623. The next prime is 12451434641. The reversal of 12451434634 is 43643415421.

It can be written as a sum of positive squares in 4 ways, for example, as 12411074025 + 40360609 = 111405^2 + 6353^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12451434593 and 12451434602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1995832 + ... + 2002060.

Almost surely, 2^12451434634 is an apocalyptic number.

12451434634 is a deficient number, since it is larger than the sum of its proper divisors (6306223166).

12451434634 is a wasteful number, since it uses less digits than its factorization.

12451434634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10377.

The product of its digits is 138240, while the sum is 37.

The spelling of 12451434634 in words is "twelve billion, four hundred fifty-one million, four hundred thirty-four thousand, six hundred thirty-four".