2256325709138 has 16 divisors (see below), whose sum is σ = 3618368133120. Its totient is φ = 1051491590976.

The previous prime is 2256325709041. The next prime is 2256325709159. The reversal of 2256325709138 is 8319075236522.

2256325709138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2256325709138.

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, 322144658 + ... + 322151661.

It is an arithmetic number, because the mean of its divisors is an integer number (226148008320).

Almost surely, 2^{2256325709138} is an apocalyptic number.

2256325709138 is a deficient number, since it is larger than the sum of its proper divisors (1362042423982).

2256325709138 is a wasteful number, since it uses less digits than its factorization.

2256325709138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644296441.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 2256325709138 in words is "two trillion, two hundred fifty-six billion, three hundred twenty-five million, seven hundred nine thousand, one hundred thirty-eight".