724040667573457 has 8 divisors (see below), whose sum is σ = 825602933160936. Its totient is φ = 629030806217472.

The previous prime is 724040667573449. The next prime is 724040667573467. The reversal of 724040667573457 is 754375766040427.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37048050797521 + 686992616775936 = 6086711^2 + 26210544^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 724040667573457 - 2³ = 724040667573449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 724040667573392 and 724040667573401.

It is not an unprimeable number, because it can be changed into a prime (724040667573467) 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 in 7 ways as a sum of consecutive naturals, for example, 1638101057638 + ... + 1638101058079.

It is an arithmetic number, because the mean of its divisors is an integer number (103200366645117).

Almost surely, 2^{724040667573457} is an apocalyptic number.

It is an amenable number.

724040667573457 is a deficient number, since it is larger than the sum of its proper divisors (101562265587479).

724040667573457 is a wasteful number, since it uses less digits than its factorization.

724040667573457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276202115747.

The product of its (nonzero) digits is 829785600, while the sum is 67.

The spelling of 724040667573457 in words is "seven hundred twenty-four trillion, forty billion, six hundred sixty-seven million, five hundred seventy-three thousand, four hundred fifty-seven".