13649133977999 has 4 divisors (see below), whose sum is σ = 14699067360936. Its totient is φ = 12599200595064.

The previous prime is 13649133977957. The next prime is 13649133978001. The reversal of 13649133977999 is 99977933194631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13649133977999 - 2²⁴ = 13649117200783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13649133970999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524966691449 + ... + 524966691474.

It is an arithmetic number, because the mean of its divisors is an integer number (3674766840234).

Almost surely, 2^{13649133977999} is an apocalyptic number.

13649133977999 is a deficient number, since it is larger than the sum of its proper divisors (1049933382937).

13649133977999 is a wasteful number, since it uses less digits than its factorization.

13649133977999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049933382936.

The product of its digits is 1874923848, while the sum is 80.

The spelling of 13649133977999 in words is "thirteen trillion, six hundred forty-nine billion, one hundred thirty-three million, nine hundred seventy-seven thousand, nine hundred ninety-nine".