8610145581 has 16 divisors (see below), whose sum is σ = 11747928960. Its totient is φ = 5607176640.

The previous prime is 8610145573. The next prime is 8610145597. The reversal of 8610145581 is 1855410168.

It is not a de Polignac number, because 8610145581 - 2³ = 8610145573 is a prime.

It is a super-2 number, since 2×8610145581² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8610145541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81825 + ... + 154646.

It is an arithmetic number, because the mean of its divisors is an integer number (734245560).

Almost surely, 2^8610145581 is an apocalyptic number.

It is an amenable number.

8610145581 is a deficient number, since it is larger than the sum of its proper divisors (3137783379).

8610145581 is a wasteful number, since it uses less digits than its factorization.

8610145581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236756.

The product of its (nonzero) digits is 38400, while the sum is 39.

The square root of 8610145581 is about 92790.8701381768. The cubic root of 8610145581 is about 2049.6049669917.

The spelling of 8610145581 in words is "eight billion, six hundred ten million, one hundred forty-five thousand, five hundred eighty-one".