15715730015873 has 8 divisors (see below), whose sum is σ = 16013198786856. Its totient is φ = 15419546208000.

The previous prime is 15715730015861. The next prime is 15715730015897. The reversal of 15715730015873 is 37851003751751.

It can be written as a sum of positive squares in 4 ways, for example, as 8210935513729 + 7504794502144 = 2865473^2 + 2739488^2 .

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 15715730015873 - 2¹⁰ = 15715730014849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15715730095873) 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, 321216086 + ... + 321265007.

It is an arithmetic number, because the mean of its divisors is an integer number (2001649848357).

Almost surely, 2^{15715730015873} is an apocalyptic number.

It is an amenable number.

15715730015873 is a deficient number, since it is larger than the sum of its proper divisors (297468770983).

15715730015873 is an equidigital number, since it uses as much as digits as its factorization.

15715730015873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642481555.

The product of its (nonzero) digits is 3087000, while the sum is 53.

The spelling of 15715730015873 in words is "fifteen trillion, seven hundred fifteen billion, seven hundred thirty million, fifteen thousand, eight hundred seventy-three".