2256839089078 has 32 divisors (see below), whose sum is σ = 4228590901248. Its totient is φ = 880956432000.

The previous prime is 2256839089049. The next prime is 2256839089121. The reversal of 2256839089078 is 8709809386522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152936448 + ... + 152951203.

It is an arithmetic number, because the mean of its divisors is an integer number (132143465664).

Almost surely, 2^{2256839089078} is an apocalyptic number.

2256839089078 is a deficient number, since it is larger than the sum of its proper divisors (1971751812170).

2256839089078 is a wasteful number, since it uses less digits than its factorization.

2256839089078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305887708.

The product of its (nonzero) digits is 104509440, while the sum is 67.

The spelling of 2256839089078 in words is "two trillion, two hundred fifty-six billion, eight hundred thirty-nine million, eighty-nine thousand, seventy-eight".