256123535214 has 16 divisors (see below), whose sum is σ = 518731211520. Its totient is φ = 84293821560.

The previous prime is 256123535207. The next prime is 256123535221. The reversal of 256123535214 is 412535321652.

It is an interprime number because it is at equal distance from previous prime (256123535207) and next prime (256123535221).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270172032 + ... + 270172979.

It is an arithmetic number, because the mean of its divisors is an integer number (32420700720).

Almost surely, 2^256123535214 is an apocalyptic number.

256123535214 is an abundant number, since it is smaller than the sum of its proper divisors (262607676306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256123535214 is a wasteful number, since it uses less digits than its factorization.

256123535214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540345095.

The product of its digits is 216000, while the sum is 39.

Adding to 256123535214 its reverse (412535321652), we get a palindrome (668658856866).

The spelling of 256123535214 in words is "two hundred fifty-six billion, one hundred twenty-three million, five hundred thirty-five thousand, two hundred fourteen".