12485458421 has 16 divisors (see below), whose sum is σ = 13188798000. Its totient is φ = 11802728448.

The previous prime is 12485458409. The next prime is 12485458423.

It is a happy number.

12485458421 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 1294992196 + 11190466225 = 35986^2 + 105785^2 .

It is a cyclic number.

It is not a de Polignac number, because 12485458421 - 2²⁶ = 12418349557 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 (12485458423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268505 + ... + 311553.

It is an arithmetic number, because the mean of its divisors is an integer number (824299875).

Almost surely, 2^12485458421 is an apocalyptic number.

It is an amenable number.

12485458421 is a deficient number, since it is larger than the sum of its proper divisors (703339579).

12485458421 is a wasteful number, since it uses less digits than its factorization.

12485458421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43288.

The product of its digits is 409600, while the sum is 44.

The spelling of 12485458421 in words is "twelve billion, four hundred eighty-five million, four hundred fifty-eight thousand, four hundred twenty-one".