19934854153 has 2 divisors, whose sum is σ = 19934854154. Its totient is φ = 19934854152.

The previous prime is 19934854111. The next prime is 19934854157. The reversal of 19934854153 is 35145843991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17771022864 + 2163831289 = 133308^2 + 46517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19934854153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19934854153.

It is not a weakly prime, because it can be changed into another prime (19934854157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9967427076 + 9967427077.

It is an arithmetic number, because the mean of its divisors is an integer number (9967427077).

Almost surely, 2^19934854153 is an apocalyptic number.

It is an amenable number.

19934854153 is a deficient number, since it is larger than the sum of its proper divisors (1).

19934854153 is an equidigital number, since it uses as much as digits as its factorization.

19934854153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 52.

The spelling of 19934854153 in words is "nineteen billion, nine hundred thirty-four million, eight hundred fifty-four thousand, one hundred fifty-three".