19039397085 has 40 divisors (see below), whose sum is σ = 34856084736. Its totient is φ = 9938285280.

The previous prime is 19039397081. The next prime is 19039397087. The reversal of 19039397085 is 58079393091.

19039397085 is a `hidden beast` number, since 1 + 90 + 393 + 97 + 0 + 85 = 666.

It is not a de Polignac number, because 19039397085 - 2² = 19039397081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19039397081) 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 in 39 ways as a sum of consecutive naturals, for example, 481081 + ... + 519150.

Almost surely, 2^19039397085 is an apocalyptic number.

19039397085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19039397085 is a deficient number, since it is larger than the sum of its proper divisors (15816687651).

19039397085 is a wasteful number, since it uses less digits than its factorization.

19039397085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000295 (or 1000286 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The spelling of 19039397085 in words is "nineteen billion, thirty-nine million, three hundred ninety-seven thousand, eighty-five".