15105708085249 has 8 divisors (see below), whose sum is σ = 15442395678720. Its totient is φ = 14769657556416.

The previous prime is 15105708085243. The next prime is 15105708085267. The reversal of 15105708085249 is 94258080750151.

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 15105708085249 - 2²⁷ = 15105573867521 is a prime.

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 15105708085249.

It is not an unprimeable number, because it can be changed into a prime (15105708085243) 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, 159218209 + ... + 159313054.

It is an arithmetic number, because the mean of its divisors is an integer number (1930299459840).

Almost surely, 2^{15105708085249} is an apocalyptic number.

It is an amenable number.

15105708085249 is a deficient number, since it is larger than the sum of its proper divisors (336687593471).

15105708085249 is a wasteful number, since it uses less digits than its factorization.

15105708085249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318532319.

The product of its (nonzero) digits is 4032000, while the sum is 55.

The spelling of 15105708085249 in words is "fifteen trillion, one hundred five billion, seven hundred eight million, eighty-five thousand, two hundred forty-nine".