19300019493 has 16 divisors (see below), whose sum is σ = 26021713536. Its totient is φ = 12723302400.

The previous prime is 19300019467. The next prime is 19300019521. The reversal of 19300019493 is 39491000391.

It is not a de Polignac number, because 19300019493 - 2⁵ = 19300019461 is a prime.

19300019493 is a modest number, since divided by 19493 gives 193 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19300019393) 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, 3108 + ... + 196493.

It is an arithmetic number, because the mean of its divisors is an integer number (1626357096).

Almost surely, 2^19300019493 is an apocalyptic number.

It is an amenable number.

19300019493 is a deficient number, since it is larger than the sum of its proper divisors (6721694043).

19300019493 is a wasteful number, since it uses less digits than its factorization.

19300019493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199964.

The product of its (nonzero) digits is 26244, while the sum is 39.

The spelling of 19300019493 in words is "nineteen billion, three hundred million, nineteen thousand, four hundred ninety-three".