82769891284 has 12 divisors (see below), whose sum is σ = 144912778164. Its totient is φ = 41366240384.

The previous prime is 82769891257. The next prime is 82769891291. The reversal of 82769891284 is 48219896728.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68812831684 + 13957059600 = 262322^2 + 118140^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4666357 + ... + 4684060.

It is an arithmetic number, because the mean of its divisors is an integer number (12076064847).

Almost surely, 2^82769891284 is an apocalyptic number.

It is an amenable number.

82769891284 is a deficient number, since it is larger than the sum of its proper divisors (62142886880).

82769891284 is a wasteful number, since it uses less digits than its factorization.

82769891284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352634 (or 9352632 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 64.

The spelling of 82769891284 in words is "eighty-two billion, seven hundred sixty-nine million, eight hundred ninety-one thousand, two hundred eighty-four".