13687533775172 has 24 divisors (see below), whose sum is σ = 24757559197056. Its totient is φ = 6617454158048.

The previous prime is 13687533775169. The next prime is 13687533775193. The reversal of 13687533775172 is 27157733578631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13687533775099 and 13687533775108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438574943 + ... + 438606150.

It is an arithmetic number, because the mean of its divisors is an integer number (1031564966544).

Almost surely, 2^{13687533775172} is an apocalyptic number.

It is an amenable number.

13687533775172 is a deficient number, since it is larger than the sum of its proper divisors (11070025421884).

13687533775172 is a wasteful number, since it uses less digits than its factorization.

13687533775172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877181227 (or 877181225 counting only the distinct ones).

The product of its digits is 155584800, while the sum is 65.

The spelling of 13687533775172 in words is "thirteen trillion, six hundred eighty-seven billion, five hundred thirty-three million, seven hundred seventy-five thousand, one hundred seventy-two".