726863506211 has 4 divisors (see below), whose sum is σ = 726872713512. Its totient is φ = 726854298912.

The previous prime is 726863506153. The next prime is 726863506307. The reversal of 726863506211 is 112605368627.

726863506211 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: 112605368627 = 79 ⋅1425384413.

It is a cyclic number.

It is not a de Polignac number, because 726863506211 - 2¹⁸ = 726863244067 is a prime.

It is a super-2 number, since 2×726863506211² (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 (726863506111) 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, 4484201 + ... + 4643466.

It is an arithmetic number, because the mean of its divisors is an integer number (181718178378).

Almost surely, 2^726863506211 is an apocalyptic number.

726863506211 is a deficient number, since it is larger than the sum of its proper divisors (9207301).

726863506211 is an equidigital number, since it uses as much as digits as its factorization.

726863506211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207300.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 726863506211 in words is "seven hundred twenty-six billion, eight hundred sixty-three million, five hundred six thousand, two hundred eleven".