11279072197854 has 24 divisors (see below), whose sum is σ = 24802735880520. Its totient is φ = 3703575945168.

The previous prime is 11279072197807. The next prime is 11279072197889. The reversal of 11279072197854 is 45879127097211.

It is a junction number, because it is equal to n+sod(n) for n = 11279072197791 and 11279072197800.

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 11 ways as a sum of consecutive naturals, for example, 4676231049 + ... + 4676233460.

It is an arithmetic number, because the mean of its divisors is an integer number (1033447328355).

Almost surely, 2^{11279072197854} is an apocalyptic number.

11279072197854 is an abundant number, since it is smaller than the sum of its proper divisors (13523663682666).

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

11279072197854 is a wasteful number, since it uses less digits than its factorization.

11279072197854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352464584 (or 9352464581 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 63.

The spelling of 11279072197854 in words is "eleven trillion, two hundred seventy-nine billion, seventy-two million, one hundred ninety-seven thousand, eight hundred fifty-four".