8461726165 has 16 divisors (see below), whose sum is σ = 10468024560. Its totient is φ = 6562183680.

The previous prime is 8461726159. The next prime is 8461726193. The reversal of 8461726165 is 5616271648.

It can be written as a sum of positive squares in 8 ways, for example, as 243578449 + 8218147716 = 15607^2 + 90654^2 .

It is not a de Polignac number, because 8461726165 - 2²⁷ = 8327508437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99270 + ... + 163639.

It is an arithmetic number, because the mean of its divisors is an integer number (654251535).

Almost surely, 2^8461726165 is an apocalyptic number.

It is an amenable number.

8461726165 is a deficient number, since it is larger than the sum of its proper divisors (2006298395).

8461726165 is a wasteful number, since it uses less digits than its factorization.

8461726165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263112.

The product of its digits is 483840, while the sum is 46.

The square root of 8461726165 is about 91987.6413710016. The cubic root of 8461726165 is about 2037.7597929365.

It can be divided in two parts, 846 and 1726165, that added together give a triangular number (1727011 = T₁₈₅₈).

The spelling of 8461726165 in words is "eight billion, four hundred sixty-one million, seven hundred twenty-six thousand, one hundred sixty-five".