13694944536 has 512 divisors, whose sum is σ = 48787200000. Its totient is φ = 3535902720.

The previous prime is 13694944447. The next prime is 13694944573. The reversal of 13694944536 is 63544949631.

It is a happy number.

13694944536 is a `hidden beast` number, since 1 + 3 + 69 + 4 + 9 + 44 + 536 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 56825376 + ... + 56825616.

It is an arithmetic number, because the mean of its divisors is an integer number (95287500).

Almost surely, 2^13694944536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13694944536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24393600000).

13694944536 is an abundant number, since it is smaller than the sum of its proper divisors (35092255464).

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

13694944536 is a wasteful number, since it uses less digits than its factorization.

13694944536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 325 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The spelling of 13694944536 in words is "thirteen billion, six hundred ninety-four million, nine hundred forty-four thousand, five hundred thirty-six".