12458257426828 has 6 divisors (see below), whose sum is σ = 21801950496956. Its totient is φ = 6229128713412.

The previous prime is 12458257426753. The next prime is 12458257426837. The reversal of 12458257426828 is 82862475285421.

It is a happy number.

It is a super-2 number, since 2×12458257426828² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12458257426828.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1557282178350 + ... + 1557282178357.

Almost surely, 2^{12458257426828} is an apocalyptic number.

It is an amenable number.

12458257426828 is a deficient number, since it is larger than the sum of its proper divisors (9343693070128).

12458257426828 is a wasteful number, since it uses less digits than its factorization.

12458257426828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114564356711 (or 3114564356709 counting only the distinct ones).

The product of its digits is 137625600, while the sum is 64.

The spelling of 12458257426828 in words is "twelve trillion, four hundred fifty-eight billion, two hundred fifty-seven million, four hundred twenty-six thousand, eight hundred twenty-eight".