19869375833 has 2 divisors, whose sum is σ = 19869375834. Its totient is φ = 19869375832.

The previous prime is 19869375791. The next prime is 19869375857. The reversal of 19869375833 is 33857396891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17543532304 + 2325843529 = 132452^2 + 48227^2 .

It is a cyclic number.

It is not a de Polignac number, because 19869375833 - 2¹⁰ = 19869374809 is a prime.

It is not a weakly prime, because it can be changed into another prime (19869375233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9934687916 + 9934687917.

It is an arithmetic number, because the mean of its divisors is an integer number (9934687917).

Almost surely, 2^19869375833 is an apocalyptic number.

It is an amenable number.

19869375833 is a deficient number, since it is larger than the sum of its proper divisors (1).

19869375833 is an equidigital number, since it uses as much as digits as its factorization.

19869375833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 62.

The spelling of 19869375833 in words is "nineteen billion, eight hundred sixty-nine million, three hundred seventy-five thousand, eight hundred thirty-three".