86172521082 has 16 divisors (see below), whose sum is σ = 174121796352. Its totient is φ = 28428048000.

The previous prime is 86172521069. The next prime is 86172521089. The reversal of 86172521082 is 28012527168.

It is not an unprimeable number, because it can be changed into a prime (86172521089) 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 7 ways as a sum of consecutive naturals, for example, 74030794 + ... + 74031957.

It is an arithmetic number, because the mean of its divisors is an integer number (10882612272).

Almost surely, 2^86172521082 is an apocalyptic number.

86172521082 is an abundant number, since it is smaller than the sum of its proper divisors (87949275270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86172521082 is a wasteful number, since it uses less digits than its factorization.

86172521082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148062853.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 86172521082 in words is "eighty-six billion, one hundred seventy-two million, five hundred twenty-one thousand, eighty-two".