123448464689 has 16 divisors (see below), whose sum is σ = 137164104000. Its totient is φ = 110166481920.

The previous prime is 123448464677. The next prime is 123448464739. The reversal of 123448464689 is 986464844321.

It is not a de Polignac number, because 123448464689 - 2³⁶ = 54728987953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123448464289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317504 + ... + 589665.

It is an arithmetic number, because the mean of its divisors is an integer number (8572756500).

Almost surely, 2^123448464689 is an apocalyptic number.

It is an amenable number.

123448464689 is a deficient number, since it is larger than the sum of its proper divisors (13715639311).

123448464689 is a wasteful number, since it uses less digits than its factorization.

123448464689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907408.

The product of its digits is 31850496, while the sum is 59.

The spelling of 123448464689 in words is "one hundred twenty-three billion, four hundred forty-eight million, four hundred sixty-four thousand, six hundred eighty-nine".