11551228481192 has 8 divisors (see below), whose sum is σ = 21658553402250. Its totient is φ = 5775614240592.

The previous prime is 11551228481159. The next prime is 11551228481201. The reversal of 11551228481192 is 29118482215511.

It can be written as a sum of positive squares in only one way, i.e., 11325742159876 + 225486321316 = 3365374^2 + 474854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 11551228481192.

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 as a sum of consecutive naturals, namely, 721951780067 + ... + 721951780082.

Almost surely, 2^{11551228481192} is an apocalyptic number.

It is an amenable number.

11551228481192 is a deficient number, since it is larger than the sum of its proper divisors (10107324921058).

11551228481192 is a wasteful number, since it uses less digits than its factorization.

11551228481192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443903560155 (or 1443903560151 counting only the distinct ones).

The product of its digits is 460800, while the sum is 50.

The spelling of 11551228481192 in words is "eleven trillion, five hundred fifty-one billion, two hundred twenty-eight million, four hundred eighty-one thousand, one hundred ninety-two".