13812977168 has 20 divisors (see below), whose sum is σ = 26999484348. Its totient is φ = 6845368320.

The previous prime is 13812977147. The next prime is 13812977197. The reversal of 13812977168 is 86177921831.

It can be written as a sum of positive squares in 2 ways, for example, as 7748928784 + 6064048384 = 88028^2 + 77872^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818153 + ... + 3821768.

Almost surely, 2^13812977168 is an apocalyptic number.

It is an amenable number.

13812977168 is a deficient number, since it is larger than the sum of its proper divisors (13186507180).

13812977168 is a wasteful number, since it uses less digits than its factorization.

13812977168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7640042 (or 7640036 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 53.

The spelling of 13812977168 in words is "thirteen billion, eight hundred twelve million, nine hundred seventy-seven thousand, one hundred sixty-eight".