1965020908087 has 2 divisors, whose sum is σ = 1965020908088. Its totient is φ = 1965020908086.

The previous prime is 1965020908027. The next prime is 1965020908211. The reversal of 1965020908087 is 7808090205691.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1965020908087 is a prime.

It is a super-2 number, since 2×1965020908087² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1965020908027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982510454043 + 982510454044.

It is an arithmetic number, because the mean of its divisors is an integer number (982510454044).

Almost surely, 2^{1965020908087} is an apocalyptic number.

1965020908087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965020908087 is an equidigital number, since it uses as much as digits as its factorization.

1965020908087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 1965020908087 in words is "one trillion, nine hundred sixty-five billion, twenty million, nine hundred eight thousand, eighty-seven".