1422256125578 has 8 divisors (see below), whose sum is σ = 2258877375972. Its totient is φ = 669297000256.

The previous prime is 1422256125571. The next prime is 1422256125601. The reversal of 1422256125578 is 8755216522241.

It can be written as a sum of positive squares in 2 ways, for example, as 1355974078369 + 66282047209 = 1164463^2 + 257453^2 .

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 (1422256125571) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20915531225 + ... + 20915531292.

Almost surely, 2^{1422256125578} is an apocalyptic number.

1422256125578 is a deficient number, since it is larger than the sum of its proper divisors (836621250394).

1422256125578 is a wasteful number, since it uses less digits than its factorization.

1422256125578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41831062536.

The product of its digits is 2688000, while the sum is 50.

The spelling of 1422256125578 in words is "one trillion, four hundred twenty-two billion, two hundred fifty-six million, one hundred twenty-five thousand, five hundred seventy-eight".