123044384478 has 16 divisors (see below), whose sum is σ = 250259765760. Its totient is φ = 40319628696.

The previous prime is 123044384401. The next prime is 123044384521. The reversal of 123044384478 is 874483440321.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173791150 + ... + 173791857.

It is an arithmetic number, because the mean of its divisors is an integer number (15641235360).

Almost surely, 2^123044384478 is an apocalyptic number.

123044384478 is an abundant number, since it is smaller than the sum of its proper divisors (127215381282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123044384478 is a wasteful number, since it uses less digits than its factorization.

123044384478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347583071.

The product of its (nonzero) digits is 2064384, while the sum is 48.

The spelling of 123044384478 in words is "one hundred twenty-three billion, forty-four million, three hundred eighty-four thousand, four hundred seventy-eight".