82472081085 has 24 divisors (see below), whose sum is σ = 147880975320. Its totient is φ = 42468381312.

The previous prime is 82472081071. The next prime is 82472081129. The reversal of 82472081085 is 58018027428.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33928534809 + 48543546276 = 184197^2 + 220326^2 .

It is not a de Polignac number, because 82472081085 - 2⁸ = 82472080829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 82472081085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31597194 + ... + 31599803.

It is an arithmetic number, because the mean of its divisors is an integer number (6161707305).

Almost surely, 2^82472081085 is an apocalyptic number.

It is an amenable number.

82472081085 is a deficient number, since it is larger than the sum of its proper divisors (65408894235).

82472081085 is a wasteful number, since it uses less digits than its factorization.

82472081085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63197037 (or 63197034 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The spelling of 82472081085 in words is "eighty-two billion, four hundred seventy-two million, eighty-one thousand, eighty-five".