726525721005543 has 24 divisors (see below), whose sum is σ = 1105188296284800. Its totient is φ = 458638484837904.

The previous prime is 726525721005527. The next prime is 726525721005593. The reversal of 726525721005543 is 345500127525627.

726525721005543 is a `hidden beast` number, since 7 + 2 + 6 + 5 + 2 + 5 + 72 + 10 + 0 + 554 + 3 = 666.

It is not a de Polignac number, because 726525721005543 - 2⁴ = 726525721005527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726525721005543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726525721005593) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1017536853 + ... + 1018250606.

It is an arithmetic number, because the mean of its divisors is an integer number (46049512345200).

Almost surely, 2^{726525721005543} is an apocalyptic number.

726525721005543 is a deficient number, since it is larger than the sum of its proper divisors (378662575279257).

726525721005543 is a wasteful number, since it uses less digits than its factorization.

726525721005543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035789571 (or 2035789568 counting only the distinct ones).

The product of its (nonzero) digits is 17640000, while the sum is 54.

The spelling of 726525721005543 in words is "seven hundred twenty-six trillion, five hundred twenty-five billion, seven hundred twenty-one million, five thousand, five hundred forty-three".