13085556488 has 8 divisors (see below), whose sum is σ = 24535418430. Its totient is φ = 6542778240.

The previous prime is 13085556469. The next prime is 13085556503. The reversal of 13085556488 is 88465558031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10729230724 + 2356325764 = 103582^2 + 48542^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 817847273 + ... + 817847288.

Almost surely, 2^13085556488 is an apocalyptic number.

It is an amenable number.

13085556488 is a deficient number, since it is larger than the sum of its proper divisors (11449861942).

13085556488 is a wasteful number, since it uses less digits than its factorization.

13085556488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635694567 (or 1635694563 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 53.

The spelling of 13085556488 in words is "thirteen billion, eighty-five million, five hundred fifty-six thousand, four hundred eighty-eight".