19768091967 has 48 divisors (see below), whose sum is σ = 33121728640. Its totient is φ = 11256646464.

The previous prime is 19768091939. The next prime is 19768092061. The reversal of 19768091967 is 76919086791.

It is not a de Polignac number, because 19768091967 - 2¹⁹ = 19767567679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19768091467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7813 + ... + 198990.

Almost surely, 2^19768091967 is an apocalyptic number.

19768091967 is a deficient number, since it is larger than the sum of its proper divisors (13353636673).

19768091967 is a wasteful number, since it uses less digits than its factorization.

19768091967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206884 (or 206881 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 63.

The spelling of 19768091967 in words is "nineteen billion, seven hundred sixty-eight million, ninety-one thousand, nine hundred sixty-seven".