723315261049 has 2 divisors, whose sum is σ = 723315261050. Its totient is φ = 723315261048.

The previous prime is 723315261041. The next prime is 723315261101. The reversal of 723315261049 is 940162513327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 617374775824 + 105940485225 = 785732^2 + 325485^2 .

It is a cyclic number.

It is not a de Polignac number, because 723315261049 - 2³ = 723315261041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 723315260996 and 723315261014.

It is not a weakly prime, because it can be changed into another prime (723315261041) 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, 361657630524 + 361657630525.

It is an arithmetic number, because the mean of its divisors is an integer number (361657630525).

Almost surely, 2^723315261049 is an apocalyptic number.

It is an amenable number.

723315261049 is a deficient number, since it is larger than the sum of its proper divisors (1).

723315261049 is an equidigital number, since it uses as much as digits as its factorization.

723315261049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 723315261049 in words is "seven hundred twenty-three billion, three hundred fifteen million, two hundred sixty-one thousand, forty-nine".