13915697849 has 8 divisors (see below), whose sum is σ = 14376318720. Its totient is φ = 13455810000.

The previous prime is 13915697839. The next prime is 13915697867. The reversal of 13915697849 is 94879651931.

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 13915697849 - 2⁴ = 13915697833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13915697791 and 13915697800.

It is not an unprimeable number, because it can be changed into a prime (13915697839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144527 + ... + 220724.

It is an arithmetic number, because the mean of its divisors is an integer number (1797039840).

Almost surely, 2^13915697849 is an apocalyptic number.

It is an amenable number.

13915697849 is a deficient number, since it is larger than the sum of its proper divisors (460620871).

13915697849 is a wasteful number, since it uses less digits than its factorization.

13915697849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366511.

The product of its digits is 14696640, while the sum is 62.

The spelling of 13915697849 in words is "thirteen billion, nine hundred fifteen million, six hundred ninety-seven thousand, eight hundred forty-nine".