11256427778 has 16 divisors (see below), whose sum is σ = 17480232000. Its totient is φ = 5429980752.

The previous prime is 11256427771. The next prime is 11256427801. The reversal of 11256427778 is 87772465211.

It is not an unprimeable number, because it can be changed into a prime (11256427771) 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 7 ways as a sum of consecutive naturals, for example, 2933 + ... + 150071.

It is an arithmetic number, because the mean of its divisors is an integer number (1092514500).

Almost surely, 2^11256427778 is an apocalyptic number.

11256427778 is a deficient number, since it is larger than the sum of its proper divisors (6223804222).

11256427778 is a wasteful number, since it uses less digits than its factorization.

11256427778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148489.

The product of its digits is 1317120, while the sum is 50.

The spelling of 11256427778 in words is "eleven billion, two hundred fifty-six million, four hundred twenty-seven thousand, seven hundred seventy-eight".