81480080680 has 32 divisors (see below), whose sum is σ = 183376159200. Its totient is φ = 32583858496.

The previous prime is 81480080659. The next prime is 81480080683. The reversal of 81480080680 is 8608008418.

It is not an unprimeable number, because it can be changed into a prime (81480080683) 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, 92662 + ... + 414181.

It is an arithmetic number, because the mean of its divisors is an integer number (5730504975).

Almost surely, 2^81480080680 is an apocalyptic number.

It is an amenable number.

81480080680 is an abundant number, since it is smaller than the sum of its proper divisors (101896078520).

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

81480080680 is a wasteful number, since it uses less digits than its factorization.

81480080680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510873 (or 510869 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 43.

The spelling of 81480080680 in words is "eighty-one billion, four hundred eighty million, eighty thousand, six hundred eighty".