1960895861 has 2 divisors, whose sum is σ = 1960895862. Its totient is φ = 1960895860.

The previous prime is 1960895819. The next prime is 1960895879. The reversal of 1960895861 is 1685980691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1959832900 + 1062961 = 44270^2 + 1031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1960895861 is a prime.

It is a super-2 number, since 2×1960895861² = 7690225155373862642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1960891861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980447930 + 980447931.

It is an arithmetic number, because the mean of its divisors is an integer number (980447931).

Almost surely, 2^1960895861 is an apocalyptic number.

It is an amenable number.

1960895861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1960895861 is an equidigital number, since it uses as much as digits as its factorization.

1960895861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 1960895861 is about 44282.0038051577. The cubic root of 1960895861 is about 1251.6555899295.

The spelling of 1960895861 in words is "one billion, nine hundred sixty million, eight hundred ninety-five thousand, eight hundred sixty-one".