11242256139978 has 8 divisors (see below), whose sum is σ = 22484512279968. Its totient is φ = 3747418713324.

The previous prime is 11242256139973. The next prime is 11242256139979. The reversal of 11242256139978 is 87993165224211.

It is a happy number.

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

11242256139978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11242256139973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 936854678326 + ... + 936854678337.

It is an arithmetic number, because the mean of its divisors is an integer number (2810564034996).

Almost surely, 2^{11242256139978} is an apocalyptic number.

11242256139978 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.

11242256139978 is a wasteful number, since it uses less digits than its factorization.

11242256139978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873709356668.

The product of its digits is 13063680, while the sum is 60.

The spelling of 11242256139978 in words is "eleven trillion, two hundred forty-two billion, two hundred fifty-six million, one hundred thirty-nine thousand, nine hundred seventy-eight".