13978471799 has 8 divisors (see below), whose sum is σ = 14988087360. Its totient is φ = 12989673216.

The previous prime is 13978471711. The next prime is 13978471807. The reversal of 13978471799 is 99717487931.

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 13978471799 - 2²⁴ = 13961694583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13978471699) 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, 5202854 + ... + 5205539.

It is an arithmetic number, because the mean of its divisors is an integer number (1873510920).

Almost surely, 2^13978471799 is an apocalyptic number.

13978471799 is a deficient number, since it is larger than the sum of its proper divisors (1009615561).

13978471799 is a wasteful number, since it uses less digits than its factorization.

13978471799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10408489.

The product of its digits is 24004512, while the sum is 65.

The spelling of 13978471799 in words is "thirteen billion, nine hundred seventy-eight million, four hundred seventy-one thousand, seven hundred ninety-nine".