82785685254 has 16 divisors (see below), whose sum is σ = 166103758080. Its totient is φ = 27506497160.

The previous prime is 82785685223. The next prime is 82785685319. The reversal of 82785685254 is 45258658728.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22180794 + ... + 22184525.

It is an arithmetic number, because the mean of its divisors is an integer number (10381484880).

Almost surely, 2^82785685254 is an apocalyptic number.

82785685254 is an abundant number, since it is smaller than the sum of its proper divisors (83318072826).

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

82785685254 is a wasteful number, since it uses less digits than its factorization.

82785685254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44365635.

The product of its digits is 43008000, while the sum is 60.

The spelling of 82785685254 in words is "eighty-two billion, seven hundred eighty-five million, six hundred eighty-five thousand, two hundred fifty-four".