19108420153 has 2 divisors, whose sum is σ = 19108420154. Its totient is φ = 19108420152.

The previous prime is 19108420147. The next prime is 19108420241. The reversal of 19108420153 is 35102480191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17733716224 + 1374703929 = 133168^2 + 37077^2 .

It is a cyclic number.

It is not a de Polignac number, because 19108420153 - 2²⁵ = 19074865721 is a prime.

It is not a weakly prime, because it can be changed into another prime (19108420853) 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 as a sum of consecutive naturals, namely, 9554210076 + 9554210077.

It is an arithmetic number, because the mean of its divisors is an integer number (9554210077).

Almost surely, 2^19108420153 is an apocalyptic number.

It is an amenable number.

19108420153 is a deficient number, since it is larger than the sum of its proper divisors (1).

19108420153 is an equidigital number, since it uses as much as digits as its factorization.

19108420153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 19108420153 in words is "nineteen billion, one hundred eight million, four hundred twenty thousand, one hundred fifty-three".