82254785690 has 128 divisors (see below), whose sum is σ = 195885527040. Its totient is φ = 24107212800.

The previous prime is 82254785677. The next prime is 82254785747. The reversal of 82254785690 is 9658745228.

It is a happy number.

It is a super-2 number, since 2×82254785690² (a number of 23 digits) contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 1005530 + ... + 1084250.

It is an arithmetic number, because the mean of its divisors is an integer number (1530355680).

Almost surely, 2^82254785690 is an apocalyptic number.

82254785690 is an abundant number, since it is smaller than the sum of its proper divisors (113630741350).

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

82254785690 is a wasteful number, since it uses less digits than its factorization.

82254785690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78828.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 82254785690 in words is "eighty-two billion, two hundred fifty-four million, seven hundred eighty-five thousand, six hundred ninety".