13810887602 has 18 divisors (see below), whose sum is σ = 21662198397. Its totient is φ = 6603378936.

The previous prime is 13810887589. The next prime is 13810887611. The reversal of 13810887602 is 20678801831.

It can be written as a sum of positive squares in 2 ways, for example, as 7230270961 + 6580616641 = 85031^2 + 81121^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=83099.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 3820748 + ... + 3824360.

Almost surely, 2^13810887602 is an apocalyptic number.

13810887602 is a deficient number, since it is larger than the sum of its proper divisors (7851310795).

13810887602 is an frugal number, since it uses more digits than its factorization.

13810887602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274 (or 3638 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 13810887602 in words is "thirteen billion, eight hundred ten million, eight hundred eighty-seven thousand, six hundred two".