234445667889 has 4 divisors (see below), whose sum is σ = 312594223856. Its totient is φ = 156297111924.

The previous prime is 234445667881. The next prime is 234445667923. The reversal of 234445667889 is 988766544432.

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 not a de Polignac number, because 234445667889 - 2³ = 234445667881 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (234445667881) 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, 39074277979 + ... + 39074277984.

It is an arithmetic number, because the mean of its divisors is an integer number (78148555964).

Almost surely, 2^234445667889 is an apocalyptic number.

It is an amenable number.

234445667889 is a deficient number, since it is larger than the sum of its proper divisors (78148555967).

234445667889 is an equidigital number, since it uses as much as digits as its factorization.

234445667889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78148555966.

The product of its digits is 278691840, while the sum is 66.

The spelling of 234445667889 in words is "two hundred thirty-four billion, four hundred forty-five million, six hundred sixty-seven thousand, eight hundred eighty-nine".