80821317010 has 32 divisors (see below), whose sum is σ = 167362083072. Its totient is φ = 27526651200.

The previous prime is 80821316963. The next prime is 80821317037. The reversal of 80821317010 is 1071312808.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3812577 + ... + 3833716.

It is an arithmetic number, because the mean of its divisors is an integer number (5230065096).

Almost surely, 2^80821317010 is an apocalyptic number.

80821317010 is an abundant number, since it is smaller than the sum of its proper divisors (86540766062).

80821317010 is a wasteful number, since it uses less digits than its factorization.

80821317010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7646458.

The product of its (nonzero) digits is 2688, while the sum is 31.

Adding to 80821317010 its reverse (1071312808), we get a palindrome (81892629818).

The spelling of 80821317010 in words is "eighty billion, eight hundred twenty-one million, three hundred seventeen thousand, ten".