19857895355 has 16 divisors (see below), whose sum is σ = 23902452000. Its totient is φ = 15837719040.

The previous prime is 19857895307. The next prime is 19857895367. The reversal of 19857895355 is 55359875891.

It is not a de Polignac number, because 19857895355 - 2¹⁶ = 19857829819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19857895291 and 19857895300.

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, 4902371 + ... + 4906419.

It is an arithmetic number, because the mean of its divisors is an integer number (1493903250).

Almost surely, 2^19857895355 is an apocalyptic number.

19857895355 is a deficient number, since it is larger than the sum of its proper divisors (4044556645).

19857895355 is a wasteful number, since it uses less digits than its factorization.

19857895355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814.

The product of its digits is 68040000, while the sum is 65.

The spelling of 19857895355 in words is "nineteen billion, eight hundred fifty-seven million, eight hundred ninety-five thousand, three hundred fifty-five".