19819023275 has 6 divisors (see below), whose sum is σ = 24575588892. Its totient is φ = 15855218600.

The previous prime is 19819023247. The next prime is 19819023277. The reversal of 19819023275 is 57232091891.

It is a happy number.

It is not a de Polignac number, because 19819023275 - 2²⁰ = 19817974699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19819023277) 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 in 5 ways as a sum of consecutive naturals, for example, 396380441 + ... + 396380490.

It is an arithmetic number, because the mean of its divisors is an integer number (4095931482).

Almost surely, 2^19819023275 is an apocalyptic number.

19819023275 is a deficient number, since it is larger than the sum of its proper divisors (4756565617).

19819023275 is an equidigital number, since it uses as much as digits as its factorization.

19819023275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792760941 (or 792760936 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 19819023275 in words is "nineteen billion, eight hundred nineteen million, twenty-three thousand, two hundred seventy-five".