11112455897 has 8 divisors (see below), whose sum is σ = 11232289992. Its totient is φ = 10992729600.

The previous prime is 11112455891. The next prime is 11112455923. The reversal of 11112455897 is 79855421111.

It can be written as a sum of positive squares in 4 ways, for example, as 110334016 + 11002121881 = 10504^2 + 104891^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11112455897 - 2⁶ = 11112455833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112455891) 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, 189647 + ... + 241227.

It is an arithmetic number, because the mean of its divisors is an integer number (1404036249).

Almost surely, 2^11112455897 is an apocalyptic number.

It is an amenable number.

11112455897 is a deficient number, since it is larger than the sum of its proper divisors (119834095).

11112455897 is an equidigital number, since it uses as much as digits as its factorization.

11112455897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53899.

The product of its digits is 100800, while the sum is 44.

The spelling of 11112455897 in words is "eleven billion, one hundred twelve million, four hundred fifty-five thousand, eight hundred ninety-seven".