13967895861 has 24 divisors (see below), whose sum is σ = 21382394904. Its totient is φ = 8756075520.

The previous prime is 13967895853. The next prime is 13967895869. The reversal of 13967895861 is 16859876931.

It is an interprime number because it is at equal distance from previous prime (13967895853) and next prime (13967895869).

It can be written as a sum of positive squares in 4 ways, for example, as 2274717636 + 11693178225 = 47694^2 + 108135^2 .

It is not a de Polignac number, because 13967895861 - 2³ = 13967895853 is a prime.

It is a super-2 number, since 2×13967895861² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13967895869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126231 + ... + 209451.

It is an arithmetic number, because the mean of its divisors is an integer number (890933121).

Almost surely, 2^13967895861 is an apocalyptic number.

It is an amenable number.

13967895861 is a deficient number, since it is larger than the sum of its proper divisors (7414499043).

13967895861 is a wasteful number, since it uses less digits than its factorization.

13967895861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84341 (or 84338 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 13967895861 in words is "thirteen billion, nine hundred sixty-seven million, eight hundred ninety-five thousand, eight hundred sixty-one".