19875640314 has 16 divisors (see below), whose sum is σ = 39754285920. Its totient is φ = 6624712560.

The previous prime is 19875640313. The next prime is 19875640333. The reversal of 19875640314 is 41304657891.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19875640313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34149 + ... + 202280.

It is an arithmetic number, because the mean of its divisors is an integer number (2484642870).

Almost surely, 2^19875640314 is an apocalyptic number.

19875640314 is an abundant number, since it is smaller than the sum of its proper divisors (19878645606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19875640314 is a wasteful number, since it uses less digits than its factorization.

19875640314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250445.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 19875640314 in words is "nineteen billion, eight hundred seventy-five million, six hundred forty thousand, three hundred fourteen".