10725106215517 has 4 divisors (see below), whose sum is σ = 10735330340700. Its totient is φ = 10714882090336.

The previous prime is 10725106215511. The next prime is 10725106215599. The reversal of 10725106215517 is 71551260152701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6893491798116 + 3831614417401 = 2625546^2 + 1957451^2 .

It is a cyclic number.

It is not a de Polignac number, because 10725106215517 - 2¹⁹ = 10725105691229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10725106215511) 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 3 ways as a sum of consecutive naturals, for example, 5112061018 + ... + 5112063115.

It is an arithmetic number, because the mean of its divisors is an integer number (2683832585175).

Almost surely, 2^{10725106215517} is an apocalyptic number.

It is an amenable number.

10725106215517 is a deficient number, since it is larger than the sum of its proper divisors (10224125183).

10725106215517 is a wasteful number, since it uses less digits than its factorization.

10725106215517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10224125182.

The product of its (nonzero) digits is 147000, while the sum is 43.

The spelling of 10725106215517 in words is "ten trillion, seven hundred twenty-five billion, one hundred six million, two hundred fifteen thousand, five hundred seventeen".