723405612197 has 2 divisors, whose sum is σ = 723405612198. Its totient is φ = 723405612196.

The previous prime is 723405612121. The next prime is 723405612203. The reversal of 723405612197 is 791216504327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 696625598881 + 26780013316 = 834641^2 + 163646^2 .

It is a cyclic number.

It is not a de Polignac number, because 723405612197 - 2¹⁸ = 723405350053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723405611197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361702806098 + 361702806099.

It is an arithmetic number, because the mean of its divisors is an integer number (361702806099).

Almost surely, 2^723405612197 is an apocalyptic number.

It is an amenable number.

723405612197 is a deficient number, since it is larger than the sum of its proper divisors (1).

723405612197 is an equidigital number, since it uses as much as digits as its factorization.

723405612197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 723405612197 in words is "seven hundred twenty-three billion, four hundred five million, six hundred twelve thousand, one hundred ninety-seven".