13823999964 has 36 divisors (see below), whose sum is σ = 35603325576. Its totient is φ = 4521055968.

The previous prime is 13823999963. The next prime is 13823999983. The reversal of 13823999964 is 46999932831.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13823999964² (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 (13823999963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3620734 + ... + 3624549.

It is an arithmetic number, because the mean of its divisors is an integer number (988981266).

Almost surely, 2^13823999964 is an apocalyptic number.

It is an amenable number.

13823999964 is an abundant number, since it is smaller than the sum of its proper divisors (21779325612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13823999964 is a wasteful number, since it uses less digits than its factorization.

13823999964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7245346 (or 7245341 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

The spelling of 13823999964 in words is "thirteen billion, eight hundred twenty-three million, nine hundred ninety-nine thousand, nine hundred sixty-four".