13129806884 has 12 divisors (see below), whose sum is σ = 22986359424. Its totient is φ = 6562275624.

The previous prime is 13129806883. The next prime is 13129806947. The reversal of 13129806884 is 48860892131.

It is a super-2 number, since 2×13129806884² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13129806883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645692 + ... + 665715.

It is an arithmetic number, because the mean of its divisors is an integer number (1915529952).

Almost surely, 2^13129806884 is an apocalyptic number.

It is an amenable number.

13129806884 is a deficient number, since it is larger than the sum of its proper divisors (9856552540).

13129806884 is a wasteful number, since it uses less digits than its factorization.

13129806884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313914 (or 1313912 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 50.

The spelling of 13129806884 in words is "thirteen billion, one hundred twenty-nine million, eight hundred six thousand, eight hundred eighty-four".