19829774823 has 8 divisors (see below), whose sum is σ = 26801887728. Its totient is φ = 13038755904.

The previous prime is 19829774807. The next prime is 19829774843. The reversal of 19829774823 is 32847792891.

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

It is not a de Polignac number, because 19829774823 - 2⁴ = 19829774807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19829774843) 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, 45273240 + ... + 45273677.

It is an arithmetic number, because the mean of its divisors is an integer number (3350235966).

Almost surely, 2^19829774823 is an apocalyptic number.

19829774823 is a deficient number, since it is larger than the sum of its proper divisors (6972112905).

19829774823 is an equidigital number, since it uses as much as digits as its factorization.

19829774823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90546993.

The product of its digits is 12192768, while the sum is 60.

The spelling of 19829774823 in words is "nineteen billion, eight hundred twenty-nine million, seven hundred seventy-four thousand, eight hundred twenty-three".