123489926349 has 8 divisors (see below), whose sum is σ = 169103322720. Its totient is φ = 80101573776.

The previous prime is 123489926323. The next prime is 123489926369. The reversal of 123489926349 is 943629984321.

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

It is not a de Polignac number, because 123489926349 - 2¹⁵ = 123489893581 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123489926292 and 123489926301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123489926369) 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, 556260819 + ... + 556261040.

It is an arithmetic number, because the mean of its divisors is an integer number (21137915340).

Almost surely, 2^123489926349 is an apocalyptic number.

It is an amenable number.

123489926349 is a deficient number, since it is larger than the sum of its proper divisors (45613396371).

123489926349 is a wasteful number, since it uses less digits than its factorization.

123489926349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112521899.

The product of its digits is 20155392, while the sum is 60.

The spelling of 123489926349 in words is "one hundred twenty-three billion, four hundred eighty-nine million, nine hundred twenty-six thousand, three hundred forty-nine".