12623442889 has 12 divisors (see below), whose sum is σ = 13890696400. Its totient is φ = 11439083304.

The previous prime is 12623442869. The next prime is 12623442919. The reversal of 12623442889 is 98824432621.

It is not a de Polignac number, because 12623442889 - 2¹³ = 12623434697 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12623442869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617919 + ... + 638020.

Almost surely, 2^12623442889 is an apocalyptic number.

12623442889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12623442889 is a deficient number, since it is larger than the sum of its proper divisors (1267253511).

12623442889 is a wasteful number, since it uses less digits than its factorization.

12623442889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256004 (or 1255981 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 49.

The spelling of 12623442889 in words is "twelve billion, six hundred twenty-three million, four hundred forty-two thousand, eight hundred eighty-nine".