19807467233 has 2 divisors, whose sum is σ = 19807467234. Its totient is φ = 19807467232.

The previous prime is 19807467223. The next prime is 19807467283. The reversal of 19807467233 is 33276470891.

It is an a-pointer prime, because the next prime (19807467283) can be obtained adding 19807467233 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11322662464 + 8484804769 = 106408^2 + 92113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19807467233 is a prime.

It is not a weakly prime, because it can be changed into another prime (19807467223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9903733616 + 9903733617.

It is an arithmetic number, because the mean of its divisors is an integer number (9903733617).

Almost surely, 2^19807467233 is an apocalyptic number.

It is an amenable number.

19807467233 is a deficient number, since it is larger than the sum of its proper divisors (1).

19807467233 is an equidigital number, since it uses as much as digits as its factorization.

19807467233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 19807467233 in words is "nineteen billion, eight hundred seven million, four hundred sixty-seven thousand, two hundred thirty-three".