19714640423 has 6 divisors (see below), whose sum is σ = 20417898384. Its totient is φ = 19034824424.

The previous prime is 19714640389. The next prime is 19714640437. The reversal of 19714640423 is 32404641791.

It is not a de Polignac number, because 19714640423 - 2¹² = 19714636327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19714640443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11720111 + ... + 11721792.

It is an arithmetic number, because the mean of its divisors is an integer number (3402983064).

Almost surely, 2^19714640423 is an apocalyptic number.

19714640423 is a deficient number, since it is larger than the sum of its proper divisors (703257961).

19714640423 is an equidigital number, since it uses as much as digits as its factorization.

19714640423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23441961 (or 23441932 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 19714640423 in words is "nineteen billion, seven hundred fourteen million, six hundred forty thousand, four hundred twenty-three".