726746452237 has 4 divisors (see below), whose sum is σ = 782650025500. Its totient is φ = 670842878976.

The previous prime is 726746452193. The next prime is 726746452249. The reversal of 726746452237 is 732254647627.

726746452237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 732254647627 = 29 ⋅25250160263.

It can be written as a sum of positive squares in 2 ways, for example, as 87248753641 + 639497698596 = 295379^2 + 799686^2 .

It is a cyclic number.

It is not a de Polignac number, because 726746452237 - 2²³ = 726738063629 is a prime.

It is a super-2 number, since 2×726746452237² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726746552237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27951786612 + ... + 27951786637.

It is an arithmetic number, because the mean of its divisors is an integer number (195662506375).

Almost surely, 2^726746452237 is an apocalyptic number.

It is an amenable number.

726746452237 is a deficient number, since it is larger than the sum of its proper divisors (55903573263).

726746452237 is a wasteful number, since it uses less digits than its factorization.

726746452237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55903573262.

The product of its digits is 23708160, while the sum is 55.

The spelling of 726746452237 in words is "seven hundred twenty-six billion, seven hundred forty-six million, four hundred fifty-two thousand, two hundred thirty-seven".