13984438049555 has 16 divisors (see below), whose sum is σ = 17829945063360. Its totient is φ = 10529459218816.

The previous prime is 13984438049531. The next prime is 13984438049557. The reversal of 13984438049555 is 55594083448931.

It is not a de Polignac number, because 13984438049555 - 2⁸ = 13984438049299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13984438049557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284616959 + ... + 284666088.

It is an arithmetic number, because the mean of its divisors is an integer number (1114371566460).

Almost surely, 2^{13984438049555} is an apocalyptic number.

13984438049555 is a deficient number, since it is larger than the sum of its proper divisors (3845507013805).

13984438049555 is an frugal number, since it uses more digits than its factorization.

13984438049555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569283103 (or 569283069 counting only the distinct ones).

The product of its (nonzero) digits is 373248000, while the sum is 68.

The spelling of 13984438049555 in words is "thirteen trillion, nine hundred eighty-four billion, four hundred thirty-eight million, forty-nine thousand, five hundred fifty-five".