16819919270 has 32 divisors (see below), whose sum is σ = 37746521856. Its totient is φ = 5242572000.

The previous prime is 16819919267. The next prime is 16819919279. The reversal of 16819919270 is 7291991861.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16819919279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10921256 + ... + 10922795.

It is an arithmetic number, because the mean of its divisors is an integer number (1179578808).

Almost surely, 2^16819919270 is an apocalyptic number.

16819919270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16819919270 is an abundant number, since it is smaller than the sum of its proper divisors (20926602586).

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

16819919270 is a wasteful number, since it uses less digits than its factorization.

16819919270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21844076.

The product of its (nonzero) digits is 489888, while the sum is 53.

The spelling of 16819919270 in words is "sixteen billion, eight hundred nineteen million, nine hundred nineteen thousand, two hundred seventy".