82485129661 has 32 divisors (see below), whose sum is σ = 91671552000. Its totient is φ = 73597740480.

The previous prime is 82485129637. The next prime is 82485129679. The reversal of 82485129661 is 16692158428.

It is not a de Polignac number, because 82485129661 - 2²¹ = 82483032509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82485129599 and 82485129608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82485129611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52638100 + ... + 52639666.

It is an arithmetic number, because the mean of its divisors is an integer number (2864736000).

Almost surely, 2^82485129661 is an apocalyptic number.

It is an amenable number.

82485129661 is a deficient number, since it is larger than the sum of its proper divisors (9186422339).

82485129661 is a wasteful number, since it uses less digits than its factorization.

82485129661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089.

The product of its digits is 1658880, while the sum is 52.

The spelling of 82485129661 in words is "eighty-two billion, four hundred eighty-five million, one hundred twenty-nine thousand, six hundred sixty-one".