13870983404161 has 4 divisors (see below), whose sum is σ = 14937982127572. Its totient is φ = 12803984680752.

The previous prime is 13870983404129. The next prime is 13870983404171. The reversal of 13870983404161 is 16140438907831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4351629635136 + 9519353769025 = 2086056^2 + 3085345^2 .

It is a cyclic number.

It is not a de Polignac number, because 13870983404161 - 2⁵ = 13870983404129 is a prime.

It is a super-2 number, since 2×13870983404161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13870983404101) 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, 533499361686 + ... + 533499361711.

It is an arithmetic number, because the mean of its divisors is an integer number (3734495531893).

Almost surely, 2^{13870983404161} is an apocalyptic number.

It is an amenable number.

13870983404161 is a deficient number, since it is larger than the sum of its proper divisors (1066998723411).

13870983404161 is a wasteful number, since it uses less digits than its factorization.

13870983404161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066998723410.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 13870983404161 in words is "thirteen trillion, eight hundred seventy billion, nine hundred eighty-three million, four hundred four thousand, one hundred sixty-one".