82320473523278 has 16 divisors (see below), whose sum is σ = 125505420735696. Its totient is φ = 40485337971840.

The previous prime is 82320473523257. The next prime is 82320473523293. The reversal of 82320473523278 is 87232537402328.

It is a happy number.

It is a super-2 number, since 2×82320473523278² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 39922025 + ... + 41933387.

It is an arithmetic number, because the mean of its divisors is an integer number (7844088795981).

Almost surely, 2^{82320473523278} is an apocalyptic number.

82320473523278 is a deficient number, since it is larger than the sum of its proper divisors (43184947212418).

82320473523278 is a wasteful number, since it uses less digits than its factorization.

82320473523278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346899.

The product of its (nonzero) digits is 27095040, while the sum is 56.

The spelling of 82320473523278 in words is "eighty-two trillion, three hundred twenty billion, four hundred seventy-three million, five hundred twenty-three thousand, two hundred seventy-eight".