123372547278 has 16 divisors (see below), whose sum is σ = 259731678720. Its totient is φ = 38959751736.

The previous prime is 123372547273. The next prime is 123372547289. The reversal of 123372547278 is 872745273321.

123372547278 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 123372547278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123372547273) 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, 541107550 + ... + 541107777.

It is an arithmetic number, because the mean of its divisors is an integer number (16233229920).

Almost surely, 2^123372547278 is an apocalyptic number.

123372547278 is an abundant number, since it is smaller than the sum of its proper divisors (136359131442).

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

123372547278 is a wasteful number, since it uses less digits than its factorization.

123372547278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082215351.

The product of its digits is 3951360, while the sum is 51.

The spelling of 123372547278 in words is "one hundred twenty-three billion, three hundred seventy-two million, five hundred forty-seven thousand, two hundred seventy-eight".