19432224431 has 4 divisors (see below), whose sum is σ = 19529874000. Its totient is φ = 19334574864.

The previous prime is 19432224397. The next prime is 19432224443. The reversal of 19432224431 is 13442223491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19432224431 - 2¹⁰ = 19432223407 is a prime.

It is a super-2 number, since 2×19432224431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19432224391 and 19432224400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19432224491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48824486 + ... + 48824883.

It is an arithmetic number, because the mean of its divisors is an integer number (4882468500).

Almost surely, 2^19432224431 is an apocalyptic number.

19432224431 is a deficient number, since it is larger than the sum of its proper divisors (97649569).

19432224431 is an equidigital number, since it uses as much as digits as its factorization.

19432224431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97649568.

The product of its digits is 41472, while the sum is 35.

The spelling of 19432224431 in words is "nineteen billion, four hundred thirty-two million, two hundred twenty-four thousand, four hundred thirty-one".