19097400203 has 8 divisors (see below), whose sum is σ = 21919274208. Its totient is φ = 16298944704.

The previous prime is 19097400193. The next prime is 19097400253. The reversal of 19097400203 is 30200479091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19097400203 - 2⁶ = 19097400139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19097400253) 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, 5852876 + ... + 5856137.

It is an arithmetic number, because the mean of its divisors is an integer number (2739909276).

Almost surely, 2^19097400203 is an apocalyptic number.

19097400203 is a deficient number, since it is larger than the sum of its proper divisors (2821874005).

19097400203 is a wasteful number, since it uses less digits than its factorization.

19097400203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11709253.

The product of its (nonzero) digits is 13608, while the sum is 35.

Adding to 19097400203 its reverse (30200479091), we get a palindrome (49297879294).

The spelling of 19097400203 in words is "nineteen billion, ninety-seven million, four hundred thousand, two hundred three".