81262000082 has 16 divisors (see below), whose sum is σ = 124889675904. Its totient is φ = 39632484000.

The previous prime is 81261999997. The next prime is 81262000103. The reversal of 81262000082 is 28000026218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354107 + ... + 536577.

It is an arithmetic number, because the mean of its divisors is an integer number (7805604744).

Almost surely, 2^81262000082 is an apocalyptic number.

81262000082 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

81262000082 is a deficient number, since it is larger than the sum of its proper divisors (43627675822).

81262000082 is a wasteful number, since it uses less digits than its factorization.

81262000082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187945.

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 81262000082 in words is "eighty-one billion, two hundred sixty-two million, eighty-two", and thus it is an aban number.