123610315728 has 160 divisors (see below), whose sum is σ = 332410867200. Its totient is φ = 39547588608.

The previous prime is 123610315681. The next prime is 123610315753. The reversal of 123610315728 is 827513016321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112066825 + ... + 112067927.

It is an arithmetic number, because the mean of its divisors is an integer number (2077567920).

Almost surely, 2^123610315728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123610315728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166205433600).

123610315728 is an abundant number, since it is smaller than the sum of its proper divisors (208800551472).

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

123610315728 is a wasteful number, since it uses less digits than its factorization.

123610315728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949 (or 1943 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 123610315728 in words is "one hundred twenty-three billion, six hundred ten million, three hundred fifteen thousand, seven hundred twenty-eight".