123465439438 has 8 divisors (see below), whose sum is σ = 202034355480. Its totient is φ = 56120654280.

The previous prime is 123465439411. The next prime is 123465439457. The reversal of 123465439438 is 834934564321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2806032693 + ... + 2806032736.

It is an arithmetic number, because the mean of its divisors is an integer number (25254294435).

Almost surely, 2^123465439438 is an apocalyptic number.

123465439438 is a deficient number, since it is larger than the sum of its proper divisors (78568916042).

123465439438 is a wasteful number, since it uses less digits than its factorization.

123465439438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612065442.

The product of its digits is 7464960, while the sum is 52.

The spelling of 123465439438 in words is "one hundred twenty-three billion, four hundred sixty-five million, four hundred thirty-nine thousand, four hundred thirty-eight".