15684814049 has 8 divisors (see below), whose sum is σ = 15760549728. Its totient is φ = 15609184000.

The previous prime is 15684814027. The next prime is 15684814063. The reversal of 15684814049 is 94041848651.

It is a happy number.

15684814049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15684814049 - 2¹² = 15684809953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15684813988 and 15684814006.

It is not an unprimeable number, because it can be changed into a prime (15684814069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279794 + ... + 331140.

It is an arithmetic number, because the mean of its divisors is an integer number (1970068716).

Almost surely, 2^15684814049 is an apocalyptic number.

It is an amenable number.

15684814049 is a deficient number, since it is larger than the sum of its proper divisors (75735679).

15684814049 is a wasteful number, since it uses less digits than its factorization.

15684814049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52815.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 15684814049 in words is "fifteen billion, six hundred eighty-four million, eight hundred fourteen thousand, forty-nine".