19057221910 has 16 divisors (see below), whose sum is σ = 34304576400. Its totient is φ = 7622538336.

The previous prime is 19057221851. The next prime is 19057221917. The reversal of 19057221910 is 1912275091.

It is a self number, because there is not a number n which added to its sum of digits gives 19057221910.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19057221917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378181 + ... + 425599.

It is an arithmetic number, because the mean of its divisors is an integer number (2144036025).

Almost surely, 2^19057221910 is an apocalyptic number.

19057221910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19057221910 is a deficient number, since it is larger than the sum of its proper divisors (15247354490).

19057221910 is a wasteful number, since it uses less digits than its factorization.

19057221910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87615.

The product of its (nonzero) digits is 11340, while the sum is 37.

The spelling of 19057221910 in words is "nineteen billion, fifty-seven million, two hundred twenty-one thousand, nine hundred ten".