13434381668 has 6 divisors (see below), whose sum is σ = 23510167926. Its totient is φ = 6717190832.

The previous prime is 13434381607. The next prime is 13434381679. The reversal of 13434381668 is 86618343431.

It can be written as a sum of positive squares in only one way, i.e., 11711135524 + 1723246144 = 108218^2 + 41512^2 .

It is a super-2 number, since 2×13434381668² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1679297705 + ... + 1679297712.

It is an arithmetic number, because the mean of its divisors is an integer number (3918361321).

Almost surely, 2^13434381668 is an apocalyptic number.

It is an amenable number.

13434381668 is a deficient number, since it is larger than the sum of its proper divisors (10075786258).

13434381668 is a wasteful number, since it uses less digits than its factorization.

13434381668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358595421 (or 3358595419 counting only the distinct ones).

The product of its digits is 995328, while the sum is 47.

The spelling of 13434381668 in words is "thirteen billion, four hundred thirty-four million, three hundred eighty-one thousand, six hundred sixty-eight".