723497433541 has 2 divisors, whose sum is σ = 723497433542. Its totient is φ = 723497433540.

The previous prime is 723497433539. The next prime is 723497433551. The reversal of 723497433541 is 145334794327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 522924228225 + 200573205316 = 723135^2 + 447854^2 .

It is an emirp because it is prime and its reverse (145334794327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 723497433541 - 2¹ = 723497433539 is a prime.

Together with 723497433539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723497433551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361748716770 + 361748716771.

It is an arithmetic number, because the mean of its divisors is an integer number (361748716771).

Almost surely, 2^723497433541 is an apocalyptic number.

It is an amenable number.

723497433541 is a deficient number, since it is larger than the sum of its proper divisors (1).

723497433541 is an equidigital number, since it uses as much as digits as its factorization.

723497433541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 52.

The spelling of 723497433541 in words is "seven hundred twenty-three billion, four hundred ninety-seven million, four hundred thirty-three thousand, five hundred forty-one".