61112223389 has 4 divisors (see below), whose sum is σ = 69842541024. Its totient is φ = 52381905756.

The previous prime is 61112223349. The next prime is 61112223401. The reversal of 61112223389 is 98332221116.

61112223389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61112223389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61112223349) 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, 4365158807 + ... + 4365158820.

It is an arithmetic number, because the mean of its divisors is an integer number (17460635256).

Almost surely, 2^61112223389 is an apocalyptic number.

It is an amenable number.

61112223389 is a deficient number, since it is larger than the sum of its proper divisors (8730317635).

61112223389 is an equidigital number, since it uses as much as digits as its factorization.

61112223389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8730317634.

The product of its digits is 31104, while the sum is 38.

The spelling of 61112223389 in words is "sixty-one billion, one hundred twelve million, two hundred twenty-three thousand, three hundred eighty-nine".