2020999969 has 2 divisors, whose sum is σ = 2020999970. Its totient is φ = 2020999968.

The previous prime is 2020999913. The next prime is 2020999987. The reversal of 2020999969 is 9699990202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2005696225 + 15303744 = 44785^2 + 3912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020999969 is a prime.

It is a super-2 number, since 2×2020999969² = 8168881749396001922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2020999909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010499984 + 1010499985.

It is an arithmetic number, because the mean of its divisors is an integer number (1010499985).

Almost surely, 2^2020999969 is an apocalyptic number.

It is an amenable number.

2020999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020999969 is an equidigital number, since it uses as much as digits as its factorization.

2020999969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417176, while the sum is 55.

The square root of 2020999969 is about 44955.5332411929. The cubic root of 2020999969 is about 1264.3154224787.

The spelling of 2020999969 in words is "two billion, twenty million, nine hundred ninety-nine thousand, nine hundred sixty-nine".