724845574897 has 2 divisors, whose sum is σ = 724845574898. Its totient is φ = 724845574896.

The previous prime is 724845574799. The next prime is 724845574903. The reversal of 724845574897 is 798475548427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 703759921216 + 21085653681 = 838904^2 + 145209^2 .

It is a cyclic number.

It is not a de Polignac number, because 724845574897 - 2⁷ = 724845574769 is a prime.

It is a super-3 number, since 3×724845574897³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (724845572897) 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, 362422787448 + 362422787449.

It is an arithmetic number, because the mean of its divisors is an integer number (362422787449).

Almost surely, 2^724845574897 is an apocalyptic number.

It is an amenable number.

724845574897 is a deficient number, since it is larger than the sum of its proper divisors (1).

724845574897 is an equidigital number, since it uses as much as digits as its factorization.

724845574897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 632217600, while the sum is 70.

The spelling of 724845574897 in words is "seven hundred twenty-four billion, eight hundred forty-five million, five hundred seventy-four thousand, eight hundred ninety-seven".