19741947233 has 2 divisors, whose sum is σ = 19741947234. Its totient is φ = 19741947232.

The previous prime is 19741947227. The next prime is 19741947307. The reversal of 19741947233 is 33274914791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19095923344 + 646023889 = 138188^2 + 25417^2 .

It is an emirp because it is prime and its reverse (33274914791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19741947233 - 2²⁶ = 19674838369 is a prime.

It is not a weakly prime, because it can be changed into another prime (19741947133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9870973616 + 9870973617.

It is an arithmetic number, because the mean of its divisors is an integer number (9870973617).

Almost surely, 2^19741947233 is an apocalyptic number.

It is an amenable number.

19741947233 is a deficient number, since it is larger than the sum of its proper divisors (1).

19741947233 is an equidigital number, since it uses as much as digits as its factorization.

19741947233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 50.

The spelling of 19741947233 in words is "nineteen billion, seven hundred forty-one million, nine hundred forty-seven thousand, two hundred thirty-three".