723351511479881 has 2 divisors, whose sum is σ = 723351511479882. Its totient is φ = 723351511479880.

The previous prime is 723351511479851. The next prime is 723351511479901. The reversal of 723351511479881 is 188974115153327.

723351511479881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529579988886025 + 193771522593856 = 23012605^2 + 13920184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723351511479881 is a prime.

It is a super-2 number, since 2×723351511479881² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (723351511479851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361675755739940 + 361675755739941.

It is an arithmetic number, because the mean of its divisors is an integer number (361675755739941).

Almost surely, 2^{723351511479881} is an apocalyptic number.

It is an amenable number.

723351511479881 is a deficient number, since it is larger than the sum of its proper divisors (1).

723351511479881 is an equidigital number, since it uses as much as digits as its factorization.

723351511479881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50803200, while the sum is 65.

The spelling of 723351511479881 in words is "seven hundred twenty-three trillion, three hundred fifty-one billion, five hundred eleven million, four hundred seventy-nine thousand, eight hundred eighty-one".