723471560253457 has 2 divisors, whose sum is σ = 723471560253458. Its totient is φ = 723471560253456.

The previous prime is 723471560253427. The next prime is 723471560253479. The reversal of 723471560253457 is 754352065174327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393837360952896 + 329634199300561 = 19845336^2 + 18155831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723471560253457 is a prime.

It is a super-2 number, since 2×723471560253457² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 723471560253395 and 723471560253404.

It is not a weakly prime, because it can be changed into another prime (723471560253427) 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, 361735780126728 + 361735780126729.

It is an arithmetic number, because the mean of its divisors is an integer number (361735780126729).

Almost surely, 2^{723471560253457} is an apocalyptic number.

It is an amenable number.

723471560253457 is a deficient number, since it is larger than the sum of its proper divisors (1).

723471560253457 is an equidigital number, since it uses as much as digits as its factorization.

723471560253457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176000, while the sum is 61.

The spelling of 723471560253457 in words is "seven hundred twenty-three trillion, four hundred seventy-one billion, five hundred sixty million, two hundred fifty-three thousand, four hundred fifty-seven".