726053593137440 has 24 divisors (see below), whose sum is σ = 1715301613787580. Its totient is φ = 290421437254912.

The previous prime is 726053593137421. The next prime is 726053593137469. The reversal of 726053593137440 is 44731395350627.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 625151809217296 + 100901783920144 = 25003036^2 + 10044988^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 726053593137440.

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, 2268917478395 + ... + 2268917478714.

Almost surely, 2^{726053593137440} is an apocalyptic number.

It is an amenable number.

726053593137440 is an abundant number, since it is smaller than the sum of its proper divisors (989248020650140).

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

726053593137440 is a wasteful number, since it uses less digits than its factorization.

726053593137440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537834957124 (or 4537834957116 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 59.

The spelling of 726053593137440 in words is "seven hundred twenty-six trillion, fifty-three billion, five hundred ninety-three million, one hundred thirty-seven thousand, four hundred forty".