726775449191 has 12 divisors (see below), whose sum is σ = 798892563000. Its totient is φ = 660671697840.

The previous prime is 726775449173. The next prime is 726775449193. The reversal of 726775449191 is 191944577627.

726775449191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-726775449191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726775449193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2446385 + ... + 2727333.

It is an arithmetic number, because the mean of its divisors is an integer number (66574380250).

Almost surely, 2^726775449191 is an apocalyptic number.

726775449191 is a deficient number, since it is larger than the sum of its proper divisors (72117113809).

726775449191 is a wasteful number, since it uses less digits than its factorization.

726775449191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302350 (or 302339 counting only the distinct ones).

The product of its digits is 26671680, while the sum is 62.

The spelling of 726775449191 in words is "seven hundred twenty-six billion, seven hundred seventy-five million, four hundred forty-nine thousand, one hundred ninety-one".