1256822449468 has 24 divisors (see below), whose sum is σ = 2318315368320. Its totient is φ = 594535662000.

The previous prime is 1256822449453. The next prime is 1256822449489. The reversal of 1256822449468 is 8649442286521.

It is a happy number.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 11072158 + ... + 11185093.

It is an arithmetic number, because the mean of its divisors is an integer number (96596473680).

Almost surely, 2^{1256822449468} is an apocalyptic number.

It is an amenable number.

1256822449468 is a deficient number, since it is larger than the sum of its proper divisors (1061492918852).

1256822449468 is a wasteful number, since it uses less digits than its factorization.

1256822449468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22258017 (or 22258015 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 61.

The spelling of 1256822449468 in words is "one trillion, two hundred fifty-six billion, eight hundred twenty-two million, four hundred forty-nine thousand, four hundred sixty-eight".