15115434302849 has 32 divisors (see below), whose sum is σ = 15682229821440. Its totient is φ = 14560702668288.

The previous prime is 15115434302831. The next prime is 15115434302863. The reversal of 15115434302849 is 94820343451151.

It is a cyclic number.

It is not a de Polignac number, because 15115434302849 - 2¹² = 15115434298753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15115434302797 and 15115434302806.

It is not an unprimeable number, because it can be changed into a prime (15115434502849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 857507174 + ... + 857524800.

It is an arithmetic number, because the mean of its divisors is an integer number (490069681920).

Almost surely, 2^{15115434302849} is an apocalyptic number.

It is an amenable number.

15115434302849 is a deficient number, since it is larger than the sum of its proper divisors (566795518591).

15115434302849 is a wasteful number, since it uses less digits than its factorization.

15115434302849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18797.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 15115434302849 in words is "fifteen trillion, one hundred fifteen billion, four hundred thirty-four million, three hundred two thousand, eight hundred forty-nine".