718454251061 has 2 divisors, whose sum is σ = 718454251062. Its totient is φ = 718454251060.

The previous prime is 718454251003. The next prime is 718454251063. The reversal of 718454251061 is 160152454817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 398200122961 + 320254128100 = 631031^2 + 565910^2 .

It is an emirp because it is prime and its reverse (160152454817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 718454251061 - 2¹⁰ = 718454250037 is a prime.

It is a super-3 number, since 3×718454251061³ (a number of 37 digits) contains 333 as substring.

Together with 718454251063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (718454251063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359227125530 + 359227125531.

It is an arithmetic number, because the mean of its divisors is an integer number (359227125531).

Almost surely, 2^718454251061 is an apocalyptic number.

It is an amenable number.

718454251061 is a deficient number, since it is larger than the sum of its proper divisors (1).

718454251061 is an equidigital number, since it uses as much as digits as its factorization.

718454251061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 718454251061 in words is "seven hundred eighteen billion, four hundred fifty-four million, two hundred fifty-one thousand, sixty-one".