12400022863 has 4 divisors (see below), whose sum is σ = 12414066808. Its totient is φ = 12385978920.

The previous prime is 12400022851. The next prime is 12400022881. The reversal of 12400022863 is 36822000421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36822000421 = 743 ⋅49558547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12400022863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400022893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7020648 + ... + 7022413.

It is an arithmetic number, because the mean of its divisors is an integer number (3103516702).

Almost surely, 2^12400022863 is an apocalyptic number.

12400022863 is a deficient number, since it is larger than the sum of its proper divisors (14043945).

12400022863 is an equidigital number, since it uses as much as digits as its factorization.

12400022863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14043944.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 12400022863 in words is "twelve billion, four hundred million, twenty-two thousand, eight hundred sixty-three".