727148179231 has 2 divisors, whose sum is σ = 727148179232. Its totient is φ = 727148179230.

The previous prime is 727148179213. The next prime is 727148179237. The reversal of 727148179231 is 132971841727.

Together with previous prime (727148179213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 727148179231 - 2⁷ = 727148179103 is a prime.

It is a super-2 number, since 2×727148179231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727148179237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363574089615 + 363574089616.

It is an arithmetic number, because the mean of its divisors is an integer number (363574089616).

Almost surely, 2^727148179231 is an apocalyptic number.

727148179231 is a deficient number, since it is larger than the sum of its proper divisors (1).

727148179231 is an equidigital number, since it uses as much as digits as its factorization.

727148179231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 52.

The spelling of 727148179231 in words is "seven hundred twenty-seven billion, one hundred forty-eight million, one hundred seventy-nine thousand, two hundred thirty-one".