19682343253 has 2 divisors, whose sum is σ = 19682343254. Its totient is φ = 19682343252.

The previous prime is 19682343211. The next prime is 19682343271. The reversal of 19682343253 is 35234328691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19249620049 + 432723204 = 138743^2 + 20802^2 .

It is a cyclic number.

It is not a de Polignac number, because 19682343253 - 2³³ = 11092408661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19682343053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9841171626 + 9841171627.

It is an arithmetic number, because the mean of its divisors is an integer number (9841171627).

Almost surely, 2^19682343253 is an apocalyptic number.

It is an amenable number.

19682343253 is a deficient number, since it is larger than the sum of its proper divisors (1).

19682343253 is an equidigital number, since it uses as much as digits as its factorization.

19682343253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 46.

The spelling of 19682343253 in words is "nineteen billion, six hundred eighty-two million, three hundred forty-three thousand, two hundred fifty-three".