726633474131173 has 4 divisors (see below), whose sum is σ = 830438256149920. Its totient is φ = 622828692112428.

The previous prime is 726633474131171. The next prime is 726633474131231. The reversal of 726633474131173 is 371131474336627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 726633474131173 - 2¹ = 726633474131171 is a prime.

It is a super-2 number, since 2×726633474131173² (a number of 31 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 (726633474131171) 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, 51902391009363 + ... + 51902391009376.

It is an arithmetic number, because the mean of its divisors is an integer number (207609564037480).

Almost surely, 2^{726633474131173} is an apocalyptic number.

It is an amenable number.

726633474131173 is a deficient number, since it is larger than the sum of its proper divisors (103804782018747).

726633474131173 is a wasteful number, since it uses less digits than its factorization.

726633474131173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103804782018746.

The product of its digits is 32006016, while the sum is 58.

The spelling of 726633474131173 in words is "seven hundred twenty-six trillion, six hundred thirty-three billion, four hundred seventy-four million, one hundred thirty-one thousand, one hundred seventy-three".