19896985335 has 16 divisors (see below), whose sum is σ = 31888875744. Its totient is φ = 10593825792.

The previous prime is 19896985319. The next prime is 19896985363. The reversal of 19896985335 is 53358969891.

It is not a de Polignac number, because 19896985335 - 2⁴ = 19896985319 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1109542 + ... + 1127331.

It is an arithmetic number, because the mean of its divisors is an integer number (1993054734).

Almost surely, 2^19896985335 is an apocalyptic number.

19896985335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19896985335 is a deficient number, since it is larger than the sum of its proper divisors (11991890409).

19896985335 is a wasteful number, since it uses less digits than its factorization.

19896985335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237474.

The product of its digits is 62985600, while the sum is 66.

The spelling of 19896985335 in words is "nineteen billion, eight hundred ninety-six million, nine hundred eighty-five thousand, three hundred thirty-five".