19855275404 has 6 divisors (see below), whose sum is σ = 34746731964. Its totient is φ = 9927637700.

The previous prime is 19855275403. The next prime is 19855275431. The reversal of 19855275404 is 40457255891.

It is a super-2 number, since 2×19855275404² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19855275403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2481909422 + ... + 2481909429.

It is an arithmetic number, because the mean of its divisors is an integer number (5791121994).

Almost surely, 2^19855275404 is an apocalyptic number.

It is an amenable number.

19855275404 is a deficient number, since it is larger than the sum of its proper divisors (14891456560).

19855275404 is a wasteful number, since it uses less digits than its factorization.

19855275404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963818855 (or 4963818853 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 19855275404 in words is "nineteen billion, eight hundred fifty-five million, two hundred seventy-five thousand, four hundred four".