995976497861 has 2 divisors, whose sum is σ = 995976497862. Its totient is φ = 995976497860.

The previous prime is 995976497851. The next prime is 995976498001. The reversal of 995976497861 is 168794679599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722170237636 + 273806260225 = 849806^2 + 523265^2 .

It is a cyclic number.

It is not a de Polignac number, because 995976497861 - 2⁶ = 995976497797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (995976497801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497988248930 + 497988248931.

It is an arithmetic number, because the mean of its divisors is an integer number (497988248931).

Almost surely, 2^995976497861 is an apocalyptic number.

It is an amenable number.

995976497861 is a deficient number, since it is larger than the sum of its proper divisors (1).

995976497861 is an equidigital number, since it uses as much as digits as its factorization.

995976497861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1851776640, while the sum is 80.

The spelling of 995976497861 in words is "nine hundred ninety-five billion, nine hundred seventy-six million, four hundred ninety-seven thousand, eight hundred sixty-one".