726731137627 has 8 divisors (see below), whose sum is σ = 805794287472. Its totient is φ = 649834101600.

The previous prime is 726731137619. The next prime is 726731137651.

726731137627 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726731137627 - 2³ = 726731137619 is a prime.

It is a super-2 number, since 2×726731137627² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726731137697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541527748 + ... + 541529089.

It is an arithmetic number, because the mean of its divisors is an integer number (100724285934).

Almost surely, 2^726731137627 is an apocalyptic number.

726731137627 is a deficient number, since it is larger than the sum of its proper divisors (79063149845).

726731137627 is a wasteful number, since it uses less digits than its factorization.

726731137627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083056909.

The product of its digits is 3111696, while the sum is 52.

The spelling of 726731137627 in words is "seven hundred twenty-six billion, seven hundred thirty-one million, one hundred thirty-seven thousand, six hundred twenty-seven".