19210190217 has 16 divisors (see below), whose sum is σ = 27024261120. Its totient is φ = 12104586000.

The previous prime is 19210190191. The next prime is 19210190239. The reversal of 19210190217 is 71209101291.

It is not a de Polignac number, because 19210190217 - 2⁸ = 19210189961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19210190257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366409 + ... + 415542.

It is an arithmetic number, because the mean of its divisors is an integer number (1689016320).

Almost surely, 2^19210190217 is an apocalyptic number.

It is an amenable number.

19210190217 is a deficient number, since it is larger than the sum of its proper divisors (7814070903).

19210190217 is a wasteful number, since it uses less digits than its factorization.

19210190217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782404.

The product of its (nonzero) digits is 2268, while the sum is 33.

The spelling of 19210190217 in words is "nineteen billion, two hundred ten million, one hundred ninety thousand, two hundred seventeen".