726403325545 has 16 divisors (see below), whose sum is σ = 923008242960. Its totient is φ = 546910101504.

The previous prime is 726403325429. The next prime is 726403325597. The reversal of 726403325545 is 545523304627.

It can be written as a sum of positive squares in 8 ways, for example, as 599858064 + 725803467481 = 24492^2 + 851941^2 .

It is a cyclic number.

It is not a de Polignac number, because 726403325545 - 2⁹ = 726403325033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 726403325495 and 726403325504.

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, 1468441 + ... + 1899769.

It is an arithmetic number, because the mean of its divisors is an integer number (57688015185).

Almost surely, 2^726403325545 is an apocalyptic number.

It is an amenable number.

726403325545 is a deficient number, since it is larger than the sum of its proper divisors (196604917415).

726403325545 is a wasteful number, since it uses less digits than its factorization.

726403325545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451164.

The product of its (nonzero) digits is 3024000, while the sum is 46.

The spelling of 726403325545 in words is "seven hundred twenty-six billion, four hundred three million, three hundred twenty-five thousand, five hundred forty-five".