19200855687881 has 16 divisors (see below), whose sum is σ = 22427690657280. Its totient is φ = 16095514786560.

The previous prime is 19200855687877. The next prime is 19200855687887. The reversal of 19200855687881 is 18878655800291.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19200855687881 - 2² = 19200855687877 is a prime.

It is a super-2 number, since 2×19200855687881² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19200855687887) 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, 21655196 + ... + 22524413.

It is an arithmetic number, because the mean of its divisors is an integer number (1401730666080).

Almost surely, 2^{19200855687881} is an apocalyptic number.

It is an amenable number.

19200855687881 is a deficient number, since it is larger than the sum of its proper divisors (3226834969399).

19200855687881 is a wasteful number, since it uses less digits than its factorization.

19200855687881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44180984.

The product of its (nonzero) digits is 77414400, while the sum is 68.

The spelling of 19200855687881 in words is "nineteen trillion, two hundred billion, eight hundred fifty-five million, six hundred eighty-seven thousand, eight hundred eighty-one".