82636657089 has 16 divisors (see below), whose sum is σ = 128850957312. Its totient is φ = 46122784848.

The previous prime is 82636657069. The next prime is 82636657123. The reversal of 82636657089 is 98075663628.

It is a happy number.

It is not a de Polignac number, because 82636657089 - 2⁵ = 82636657057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82636657009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45755829 + ... + 45757634.

It is an arithmetic number, because the mean of its divisors is an integer number (8053184832).

Almost surely, 2^82636657089 is an apocalyptic number.

It is an amenable number.

82636657089 is a deficient number, since it is larger than the sum of its proper divisors (46214300223).

82636657089 is a wasteful number, since it uses less digits than its factorization.

82636657089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91513516.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 82636657089 in words is "eighty-two billion, six hundred thirty-six million, six hundred fifty-seven thousand, eighty-nine".