12485406989 has 4 divisors (see below), whose sum is σ = 13620444000. Its totient is φ = 11350369980.

The previous prime is 12485406971. The next prime is 12485407003. The reversal of 12485406989 is 98960458421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12485406989 is a prime.

It is a super-2 number, since 2×12485406989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12485406949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567518489 + ... + 567518510.

It is an arithmetic number, because the mean of its divisors is an integer number (3405111000).

Almost surely, 2^12485406989 is an apocalyptic number.

It is an amenable number.

12485406989 is a deficient number, since it is larger than the sum of its proper divisors (1135037011).

12485406989 is a wasteful number, since it uses less digits than its factorization.

12485406989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135037010.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 12485406989 in words is "twelve billion, four hundred eighty-five million, four hundred six thousand, nine hundred eighty-nine".