256345314042 has 8 divisors (see below), whose sum is σ = 512690628096. Its totient is φ = 85448438012.

The previous prime is 256345314019. The next prime is 256345314059. The reversal of 256345314042 is 240413543652.

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

256345314042 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21362109498 + ... + 21362109509.

It is an arithmetic number, because the mean of its divisors is an integer number (64086328512).

Almost surely, 2^256345314042 is an apocalyptic number.

256345314042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256345314042 is a wasteful number, since it uses less digits than its factorization.

256345314042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42724219012.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 256345314042 its reverse (240413543652), we get a palindrome (496758857694).

The spelling of 256345314042 in words is "two hundred fifty-six billion, three hundred forty-five million, three hundred fourteen thousand, forty-two".