13844551808 has 16 divisors (see below), whose sum is σ = 27580943310. Its totient is φ = 6922275840.

The previous prime is 13844551781. The next prime is 13844551823. The reversal of 13844551808 is 80815544831.

It can be written as a sum of positive squares in only one way, i.e., 12542208064 + 1302343744 = 111992^2 + 36088^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×13844551808² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54080153 + ... + 54080408.

Almost surely, 2^13844551808 is an apocalyptic number.

It is an amenable number.

13844551808 is a deficient number, since it is larger than the sum of its proper divisors (13736391502).

13844551808 is an equidigital number, since it uses as much as digits as its factorization.

13844551808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108160575 (or 108160563 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 47.

The spelling of 13844551808 in words is "thirteen billion, eight hundred forty-four million, five hundred fifty-one thousand, eight hundred eight".