20242126889 has 2 divisors, whose sum is σ = 20242126890. Its totient is φ = 20242126888.

The previous prime is 20242126859. The next prime is 20242126903. The reversal of 20242126889 is 98862124202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19025512489 + 1216614400 = 137933^2 + 34880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20242126889 is a prime.

It is a super-3 number, since 3×20242126889³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20242126819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121063444 + 10121063445.

It is an arithmetic number, because the mean of its divisors is an integer number (10121063445).

Almost surely, 2^20242126889 is an apocalyptic number.

It is an amenable number.

20242126889 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242126889 is an equidigital number, since it uses as much as digits as its factorization.

20242126889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 20242126889 in words is "twenty billion, two hundred forty-two million, one hundred twenty-six thousand, eight hundred eighty-nine".