726168123930 has 32 divisors (see below), whose sum is σ = 1754500176000. Its totient is φ = 192345202112.

The previous prime is 726168123911. The next prime is 726168123977. The reversal of 726168123930 is 39321861627.

726168123930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 726168123930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81222390 + ... + 81231329.

It is an arithmetic number, because the mean of its divisors is an integer number (54828130500).

Almost surely, 2^726168123930 is an apocalyptic number.

726168123930 is an abundant number, since it is smaller than the sum of its proper divisors (1028332052070).

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

726168123930 is a wasteful number, since it uses less digits than its factorization.

726168123930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162453878.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 726168123930 in words is "seven hundred twenty-six billion, one hundred sixty-eight million, one hundred twenty-three thousand, nine hundred thirty".