995856870517 has 2 divisors, whose sum is σ = 995856870518. Its totient is φ = 995856870516.

The previous prime is 995856870511. The next prime is 995856870529. The reversal of 995856870517 is 715078658599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 914320352401 + 81536518116 = 956201^2 + 285546^2 .

It is a cyclic number.

It is not a de Polignac number, because 995856870517 - 2⁷ = 995856870389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (995856870511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497928435258 + 497928435259.

It is an arithmetic number, because the mean of its divisors is an integer number (497928435259).

Almost surely, 2^995856870517 is an apocalyptic number.

It is an amenable number.

995856870517 is a deficient number, since it is larger than the sum of its proper divisors (1).

995856870517 is an equidigital number, since it uses as much as digits as its factorization.

995856870517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512000, while the sum is 70.

The spelling of 995856870517 in words is "nine hundred ninety-five billion, eight hundred fifty-six million, eight hundred seventy thousand, five hundred seventeen".