20275999019 has 2 divisors, whose sum is σ = 20275999020. Its totient is φ = 20275999018.

The previous prime is 20275999013. The next prime is 20275999027. The reversal of 20275999019 is 91099957202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20275999019 - 2³² = 15981031723 is a prime.

It is a super-2 number, since 2×20275999019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20275999013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10137999509 + 10137999510.

It is an arithmetic number, because the mean of its divisors is an integer number (10137999510).

Almost surely, 2^20275999019 is an apocalyptic number.

20275999019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20275999019 is an equidigital number, since it uses as much as digits as its factorization.

20275999019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 918540, while the sum is 53.

The spelling of 20275999019 in words is "twenty billion, two hundred seventy-five million, nine hundred ninety-nine thousand, nineteen".