256122506227726 has 8 divisors (see below), whose sum is σ = 384385854959784. Its totient is φ = 127993887907800.

The previous prime is 256122506227681. The next prime is 256122506227727. The reversal of 256122506227726 is 627722605221652.

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

It is a super-2 number, since 2×256122506227726² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256122506227727) 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 3 ways as a sum of consecutive naturals, for example, 33682598280 + ... + 33682605883.

It is an arithmetic number, because the mean of its divisors is an integer number (48048231869973).

Almost surely, 2^{256122506227726} is an apocalyptic number.

256122506227726 is a deficient number, since it is larger than the sum of its proper divisors (128263348732058).

256122506227726 is a wasteful number, since it uses less digits than its factorization.

256122506227726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67365206066.

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 256122506227726 in words is "two hundred fifty-six trillion, one hundred twenty-two billion, five hundred six million, two hundred twenty-seven thousand, seven hundred twenty-six".