20344464413 has 32 divisors (see below), whose sum is σ = 26156390400. Its totient is φ = 15380139456.

The previous prime is 20344464403. The next prime is 20344464443. The reversal of 20344464413 is 31446444302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20344464413 - 2¹² = 20344460317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344464403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2127998 + ... + 2137536.

It is an arithmetic number, because the mean of its divisors is an integer number (817387200).

Almost surely, 2^20344464413 is an apocalyptic number.

20344464413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20344464413 is a deficient number, since it is larger than the sum of its proper divisors (5811925987).

20344464413 is a wasteful number, since it uses less digits than its factorization.

20344464413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601.

The product of its (nonzero) digits is 110592, while the sum is 35.

The spelling of 20344464413 in words is "twenty billion, three hundred forty-four million, four hundred sixty-four thousand, four hundred thirteen".