19875461423 has 8 divisors (see below), whose sum is σ = 20922921600. Its totient is φ = 18828139608.

The previous prime is 19875461383. The next prime is 19875461429. The reversal of 19875461423 is 32416457891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19875461423 is a prime.

It is a super-2 number, since 2×19875461423² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19875461429) 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, 401108 + ... + 447926.

It is an arithmetic number, because the mean of its divisors is an integer number (2615365200).

Almost surely, 2^19875461423 is an apocalyptic number.

19875461423 is a deficient number, since it is larger than the sum of its proper divisors (1047460177).

19875461423 is a wasteful number, since it uses less digits than its factorization.

19875461423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69181.

The product of its digits is 1451520, while the sum is 50.

The spelling of 19875461423 in words is "nineteen billion, eight hundred seventy-five million, four hundred sixty-one thousand, four hundred twenty-three".