28195081662 has 32 divisors (see below), whose sum is σ = 61625888640. Its totient is φ = 8528777120.

The previous prime is 28195081627. The next prime is 28195081687. The reversal of 28195081662 is 26618059182.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 342237 + ... + 416552.

It is an arithmetic number, because the mean of its divisors is an integer number (1925809020).

Almost surely, 2^28195081662 is an apocalyptic number.

28195081662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28195081662 is an abundant number, since it is smaller than the sum of its proper divisors (33430806978).

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

28195081662 is a wasteful number, since it uses less digits than its factorization.

28195081662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759368.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 28195081662 in words is "twenty-eight billion, one hundred ninety-five million, eighty-one thousand, six hundred sixty-two".