123489465494 has 16 divisors (see below), whose sum is σ = 185477712288. Its totient is φ = 61663617792.

The previous prime is 123489465493. The next prime is 123489465521. The reversal of 123489465494 is 494564984321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123489465493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4915814 + ... + 4940870.

It is an arithmetic number, because the mean of its divisors is an integer number (11592357018).

Almost surely, 2^123489465494 is an apocalyptic number.

123489465494 is a deficient number, since it is larger than the sum of its proper divisors (61988246794).

123489465494 is a wasteful number, since it uses less digits than its factorization.

123489465494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28199.

The product of its digits is 29859840, while the sum is 59.

The spelling of 123489465494 in words is "one hundred twenty-three billion, four hundred eighty-nine million, four hundred sixty-five thousand, four hundred ninety-four".