82730966981 has 12 divisors (see below), whose sum is σ = 89872529760. Its totient is φ = 76121444880.

The previous prime is 82730966971. The next prime is 82730967023. The reversal of 82730966981 is 18966903728.

It is not a de Polignac number, because 82730966981 - 2¹⁰ = 82730965957 is a prime.

It is a super-2 number, since 2×82730966981² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82730966981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82730966921) 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 11 ways as a sum of consecutive naturals, for example, 734471 + ... + 839588.

It is an arithmetic number, because the mean of its divisors is an integer number (7489377480).

Almost surely, 2^82730966981 is an apocalyptic number.

It is an amenable number.

82730966981 is a deficient number, since it is larger than the sum of its proper divisors (7141562779).

82730966981 is a wasteful number, since it uses less digits than its factorization.

82730966981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574396 (or 1574383 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 82730966981 in words is "eighty-two billion, seven hundred thirty million, nine hundred sixty-six thousand, nine hundred eighty-one".