13986981469 has 8 divisors (see below), whose sum is σ = 14204797632. Its totient is φ = 13769743680.

The previous prime is 13986981451. The next prime is 13986981473. The reversal of 13986981469 is 96418968931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13986981469 - 2¹¹ = 13986979421 is a prime.

It is a super-2 number, since 2×13986981469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13986981469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13986981269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95724 + ... + 192709.

It is an arithmetic number, because the mean of its divisors is an integer number (1775599704).

Almost surely, 2^13986981469 is an apocalyptic number.

It is an amenable number.

13986981469 is a deficient number, since it is larger than the sum of its proper divisors (217816163).

13986981469 is an equidigital number, since it uses as much as digits as its factorization.

13986981469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289187.

The product of its digits is 20155392, while the sum is 64.

The spelling of 13986981469 in words is "thirteen billion, nine hundred eighty-six million, nine hundred eighty-one thousand, four hundred sixty-nine".