19192019092820 has 24 divisors (see below), whose sum is σ = 46060845823104. Its totient is φ = 6580120831776.

The previous prime is 19192019092747. The next prime is 19192019092823. The reversal of 19192019092820 is 2829091029191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19192019092823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68542925192 + ... + 68542925471.

It is an arithmetic number, because the mean of its divisors is an integer number (1919201909296).

Almost surely, 2^{19192019092820} is an apocalyptic number.

19192019092820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19192019092820 is an abundant number, since it is smaller than the sum of its proper divisors (26868826730284).

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

19192019092820 is a wasteful number, since it uses less digits than its factorization.

19192019092820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137085850679 (or 137085850677 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 53.

The spelling of 19192019092820 in words is "nineteen trillion, one hundred ninety-two billion, nineteen million, ninety-two thousand, eight hundred twenty".