19868322386892 has 48 divisors (see below), whose sum is σ = 53000111243520. Its totient is φ = 5674743730752.

The previous prime is 19868322386881. The next prime is 19868322386893. The reversal of 19868322386892 is 29868322386891.

It is not an unprimeable number, because it can be changed into a prime (19868322386893) 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, 39746142 + ... + 40242917.

It is an arithmetic number, because the mean of its divisors is an integer number (1104168984240).

Almost surely, 2^{19868322386892} is an apocalyptic number.

19868322386892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19868322386892 is an abundant number, since it is smaller than the sum of its proper divisors (33131788856628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19868322386892 is a wasteful number, since it uses less digits than its factorization.

19868322386892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79992030 (or 79992028 counting only the distinct ones).

The product of its digits is 859963392, while the sum is 75.

Subtracting 19868322386892 from its reverse (29868322386891), we obtain a palindrome (9999999999999).

The spelling of 19868322386892 in words is "nineteen trillion, eight hundred sixty-eight billion, three hundred twenty-two million, three hundred eighty-six thousand, eight hundred ninety-two".