20344576423 has 8 divisors (see below), whose sum is σ = 21230983008. Its totient is φ = 19458324864.

The previous prime is 20344576381. The next prime is 20344576459. The reversal of 20344576423 is 32467544302.

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

It is a cyclic number.

It is not a de Polignac number, because 20344576423 - 2¹⁷ = 20344445351 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 (20344576823) 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, 288211 + ... + 351787.

It is an arithmetic number, because the mean of its divisors is an integer number (2653872876).

Almost surely, 2^20344576423 is an apocalyptic number.

20344576423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20344576423 is a deficient number, since it is larger than the sum of its proper divisors (886406585).

20344576423 is a wasteful number, since it uses less digits than its factorization.

20344576423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77513.

The product of its (nonzero) digits is 483840, while the sum is 40.

The spelling of 20344576423 in words is "twenty billion, three hundred forty-four million, five hundred seventy-six thousand, four hundred twenty-three".