12452257858 has 8 divisors (see below), whose sum is σ = 19322469180. Its totient is φ = 6011434800.

The previous prime is 12452257789. The next prime is 12452257859. The reversal of 12452257858 is 85875225421.

It can be written as a sum of positive squares in 2 ways, for example, as 11853330129 + 598927729 = 108873^2 + 24473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12452257859) 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, 107346993 + ... + 107347108.

Almost surely, 2^12452257858 is an apocalyptic number.

12452257858 is a deficient number, since it is larger than the sum of its proper divisors (6870211322).

12452257858 is a wasteful number, since it uses less digits than its factorization.

12452257858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214694132.

The product of its digits is 1792000, while the sum is 49.

The spelling of 12452257858 in words is "twelve billion, four hundred fifty-two million, two hundred fifty-seven thousand, eight hundred fifty-eight".