726453260440 has 32 divisors (see below), whose sum is σ = 1635617700000. Its totient is φ = 290386128384.

The previous prime is 726453260419. The next prime is 726453260501. The reversal of 726453260440 is 44062354627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6038940 + ... + 6158059.

It is an arithmetic number, because the mean of its divisors is an integer number (51113053125).

Almost surely, 2^726453260440 is an apocalyptic number.

It is an amenable number.

726453260440 is an abundant number, since it is smaller than the sum of its proper divisors (909164439560).

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

726453260440 is a wasteful number, since it uses less digits than its factorization.

726453260440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12198499 (or 12198495 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 43.

The spelling of 726453260440 in words is "seven hundred twenty-six billion, four hundred fifty-three million, two hundred sixty thousand, four hundred forty".