12400823451 has 16 divisors (see below), whose sum is σ = 18268222464. Its totient is φ = 7442607744.

The previous prime is 12400823443. The next prime is 12400823483. The reversal of 12400823451 is 15432800421.

12400823451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12400823451 - 2³ = 12400823443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12400823401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5284771 + ... + 5287116.

It is an arithmetic number, because the mean of its divisors is an integer number (1141763904).

Almost surely, 2^12400823451 is an apocalyptic number.

12400823451 is a deficient number, since it is larger than the sum of its proper divisors (5867399013).

12400823451 is a wasteful number, since it uses less digits than its factorization.

12400823451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10571930.

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 12400823451 in words is "twelve billion, four hundred million, eight hundred twenty-three thousand, four hundred fifty-one".