860038786865 has 4 divisors (see below), whose sum is σ = 1032046544244. Its totient is φ = 688031029488.

The previous prime is 860038786819. The next prime is 860038786883. The reversal of 860038786865 is 568687830068.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 524510541361 + 335528245504 = 724231^2 + 579248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-860038786865 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86003878682 + ... + 86003878691.

It is an arithmetic number, because the mean of its divisors is an integer number (258011636061).

Almost surely, 2^860038786865 is an apocalyptic number.

It is an amenable number.

860038786865 is a deficient number, since it is larger than the sum of its proper divisors (172007757379).

860038786865 is a wasteful number, since it uses less digits than its factorization.

860038786865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172007757378.

The product of its (nonzero) digits is 92897280, while the sum is 65.

The spelling of 860038786865 in words is "eight hundred sixty billion, thirty-eight million, seven hundred eighty-six thousand, eight hundred sixty-five".