19850035305 has 16 divisors (see below), whose sum is σ = 31763470464. Its totient is φ = 10585547520.

The previous prime is 19850035291. The next prime is 19850035307. The reversal of 19850035305 is 50353005891.

It is a happy number.

It is not a de Polignac number, because 19850035305 - 2⁵ = 19850035273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19850035307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83985 + ... + 216225.

It is an arithmetic number, because the mean of its divisors is an integer number (1985216904).

Almost surely, 2^19850035305 is an apocalyptic number.

19850035305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19850035305 is a deficient number, since it is larger than the sum of its proper divisors (11913435159).

19850035305 is a wasteful number, since it uses less digits than its factorization.

19850035305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142256.

The product of its (nonzero) digits is 81000, while the sum is 39.

The spelling of 19850035305 in words is "nineteen billion, eight hundred fifty million, thirty-five thousand, three hundred five".