865473505374568 has 64 divisors (see below), whose sum is σ = 1726965557594640. Its totient is φ = 405208558239744.

The previous prime is 865473505374553. The next prime is 865473505374581.

865473505374568 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 655756245476644 + 209717259897924 = 25607738^2 + 14481618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 865473505374494 and 865473505374503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2382618496 + ... + 2382981712.

Almost surely, 2^{865473505374568} is an apocalyptic number.

It is an amenable number.

865473505374568 is a deficient number, since it is larger than the sum of its proper divisors (861492052220072).

865473505374568 is a wasteful number, since it uses less digits than its factorization.

865473505374568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452374 (or 452370 counting only the distinct ones).

The product of its (nonzero) digits is 10160640000, while the sum is 76.

The spelling of 865473505374568 in words is "eight hundred sixty-five trillion, four hundred seventy-three billion, five hundred five million, three hundred seventy-four thousand, five hundred sixty-eight".