123694919389 has 8 divisors (see below), whose sum is σ = 124352363520. Its totient is φ = 123037578000.

The previous prime is 123694919377. The next prime is 123694919399. The reversal of 123694919389 is 983919496321.

It is a happy number.

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 123694919389 - 2⁵ = 123694919357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123694919389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123694919329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4359952 + ... + 4388230.

It is an arithmetic number, because the mean of its divisors is an integer number (15544045440).

Almost surely, 2^123694919389 is an apocalyptic number.

It is an amenable number.

123694919389 is a deficient number, since it is larger than the sum of its proper divisors (657444131).

123694919389 is a wasteful number, since it uses less digits than its factorization.

123694919389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51371.

The product of its digits is 22674816, while the sum is 64.

The spelling of 123694919389 in words is "one hundred twenty-three billion, six hundred ninety-four million, nine hundred nineteen thousand, three hundred eighty-nine".