82989021634 has 16 divisors (see below), whose sum is σ = 129437093376. Its totient is φ = 39862864800.

The previous prime is 82989021623. The next prime is 82989021637. The reversal of 82989021634 is 43612098928.

It is not an unprimeable number, because it can be changed into a prime (82989021637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4876662 + ... + 4893649.

It is an arithmetic number, because the mean of its divisors is an integer number (8089818336).

Almost surely, 2^82989021634 is an apocalyptic number.

82989021634 is a deficient number, since it is larger than the sum of its proper divisors (46448071742).

82989021634 is a wasteful number, since it uses less digits than its factorization.

82989021634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770481.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 82989021634 in words is "eighty-two billion, nine hundred eighty-nine million, twenty-one thousand, six hundred thirty-four".