19473861423 has 16 divisors (see below), whose sum is σ = 26671017440. Its totient is φ = 12629748096.

The previous prime is 19473861401. The next prime is 19473861479. The reversal of 19473861423 is 32416837491.

It is not a de Polignac number, because 19473861423 - 2⁹ = 19473860911 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 (19473061423) 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, 1194813 + ... + 1211001.

It is an arithmetic number, because the mean of its divisors is an integer number (1666938590).

Almost surely, 2^19473861423 is an apocalyptic number.

19473861423 is a deficient number, since it is larger than the sum of its proper divisors (7197156017).

19473861423 is a wasteful number, since it uses less digits than its factorization.

19473861423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27066.

The product of its digits is 870912, while the sum is 48.

The spelling of 19473861423 in words is "nineteen billion, four hundred seventy-three million, eight hundred sixty-one thousand, four hundred twenty-three".