19662095039 has 2 divisors, whose sum is σ = 19662095040. Its totient is φ = 19662095038.

The previous prime is 19662095027. The next prime is 19662095069. The reversal of 19662095039 is 93059026691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19662095039 - 2⁴ = 19662095023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19662095069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9831047519 + 9831047520.

It is an arithmetic number, because the mean of its divisors is an integer number (9831047520).

Almost surely, 2^19662095039 is an apocalyptic number.

19662095039 is a deficient number, since it is larger than the sum of its proper divisors (1).

19662095039 is an equidigital number, since it uses as much as digits as its factorization.

19662095039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 787320, while the sum is 50.

The spelling of 19662095039 in words is "nineteen billion, six hundred sixty-two million, ninety-five thousand, thirty-nine".