20003554890419 has 2 divisors, whose sum is σ = 20003554890420. Its totient is φ = 20003554890418.

The previous prime is 20003554890349. The next prime is 20003554890427. The reversal of 20003554890419 is 91409845530002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20003554890419 is a prime.

It is a super-2 number, since 2×20003554890419² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20003554895419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001777445209 + 10001777445210.

It is an arithmetic number, because the mean of its divisors is an integer number (10001777445210).

Almost surely, 2^{20003554890419} is an apocalyptic number.

20003554890419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003554890419 is an equidigital number, since it uses as much as digits as its factorization.

20003554890419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 20003554890419 in words is "twenty trillion, three billion, five hundred fifty-four million, eight hundred ninety thousand, four hundred nineteen".