19019859999220 has 12 divisors (see below), whose sum is σ = 39941705998404. Its totient is φ = 7607943999680.

The previous prime is 19019859999191. The next prime is 19019859999269. The reversal of 19019859999220 is 2299995891091.

It can be written as a sum of positive squares in 2 ways, for example, as 2537591652324 + 16482268346896 = 1592982^2 + 4059836^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475496499961 + ... + 475496500000.

It is an arithmetic number, because the mean of its divisors is an integer number (3328475499867).

Almost surely, 2^{19019859999220} is an apocalyptic number.

19019859999220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19019859999220 is an abundant number, since it is smaller than the sum of its proper divisors (20921845999184).

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

19019859999220 is a wasteful number, since it uses less digits than its factorization.

19019859999220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950992999970 (or 950992999968 counting only the distinct ones).

The product of its (nonzero) digits is 85030560, while the sum is 73.

The spelling of 19019859999220 in words is "nineteen trillion, nineteen billion, eight hundred fifty-nine million, nine hundred ninety-nine thousand, two hundred twenty".