723091938461 has 2 divisors, whose sum is σ = 723091938462. Its totient is φ = 723091938460.

The previous prime is 723091938451. The next prime is 723091938469. The reversal of 723091938461 is 164839190327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708805712836 + 14286225625 = 841906^2 + 119525^2 .

It is a cyclic number.

It is not a de Polignac number, because 723091938461 - 2¹⁰ = 723091937437 is a prime.

It is a super-2 number, since 2×723091938461² (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 (723091938469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361545969230 + 361545969231.

It is an arithmetic number, because the mean of its divisors is an integer number (361545969231).

Almost surely, 2^723091938461 is an apocalyptic number.

It is an amenable number.

723091938461 is a deficient number, since it is larger than the sum of its proper divisors (1).

723091938461 is an equidigital number, since it uses as much as digits as its factorization.

723091938461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 723091938461 in words is "seven hundred twenty-three billion, ninety-one million, nine hundred thirty-eight thousand, four hundred sixty-one".