19203690830 has 32 divisors (see below), whose sum is σ = 36394716960. Its totient is φ = 7275432960.

The previous prime is 19203690829. The next prime is 19203690833. The reversal of 19203690830 is 3809630291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19203690833) 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, 996890 + ... + 1015970.

It is an arithmetic number, because the mean of its divisors is an integer number (1137334905).

Almost surely, 2^19203690830 is an apocalyptic number.

19203690830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19203690830 is a deficient number, since it is larger than the sum of its proper divisors (17191026130).

19203690830 is a wasteful number, since it uses less digits than its factorization.

19203690830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24404.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 19203690830 in words is "nineteen billion, two hundred three million, six hundred ninety thousand, eight hundred thirty".