20633952019 has 2 divisors, whose sum is σ = 20633952020. Its totient is φ = 20633952018.

The previous prime is 20633951983. The next prime is 20633952029. The reversal of 20633952019 is 91025933602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20633952019 - 2¹⁷ = 20633820947 is a prime.

It is a super-2 number, since 2×20633952019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20633952029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10316976009 + 10316976010.

It is an arithmetic number, because the mean of its divisors is an integer number (10316976010).

Almost surely, 2^20633952019 is an apocalyptic number.

20633952019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20633952019 is an equidigital number, since it uses as much as digits as its factorization.

20633952019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 20633952019 in words is "twenty billion, six hundred thirty-three million, nine hundred fifty-two thousand, nineteen".