82320223840780 has 48 divisors (see below), whose sum is σ = 177103007950176. Its totient is φ = 32122401016320.

The previous prime is 82320223840717. The next prime is 82320223840861. The reversal of 82320223840780 is 8704832202328.

It is a happy number.

It is a super-2 number, since 2×82320223840780² (a number of 29 digits) contains 22 as substring.

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, 6287962 + ... + 14289118.

It is an arithmetic number, because the mean of its divisors is an integer number (3689645998962).

Almost surely, 2^{82320223840780} is an apocalyptic number.

It is an amenable number.

82320223840780 is an abundant number, since it is smaller than the sum of its proper divisors (94782784109396).

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

82320223840780 is a wasteful number, since it uses less digits than its factorization.

82320223840780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013754 (or 8013752 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 49.

The spelling of 82320223840780 in words is "eighty-two trillion, three hundred twenty billion, two hundred twenty-three million, eight hundred forty thousand, seven hundred eighty".