19212919210 has 16 divisors (see below), whose sum is σ = 34795424736. Its totient is φ = 7638018768.

The previous prime is 19212919207. The next prime is 19212919237. The reversal of 19212919210 is 1291921291.

It is a self number, because there is not a number n which added to its sum of digits gives 19212919210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5891904 + ... + 5895163.

It is an arithmetic number, because the mean of its divisors is an integer number (2174714046).

Almost surely, 2^19212919210 is an apocalyptic number.

19212919210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19212919210 is a deficient number, since it is larger than the sum of its proper divisors (15582505526).

19212919210 is a wasteful number, since it uses less digits than its factorization.

19212919210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11787237.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 19212919210 in words is "nineteen billion, two hundred twelve million, nine hundred nineteen thousand, two hundred ten".