82213380856 has 8 divisors (see below), whose sum is σ = 154150089120. Its totient is φ = 41106690424.

The previous prime is 82213380841. The next prime is 82213380857. The reversal of 82213380856 is 65808331228.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82213380857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5138336296 + ... + 5138336311.

It is an arithmetic number, because the mean of its divisors is an integer number (19268761140).

Almost surely, 2^82213380856 is an apocalyptic number.

It is an amenable number.

82213380856 is a deficient number, since it is larger than the sum of its proper divisors (71936708264).

82213380856 is a wasteful number, since it uses less digits than its factorization.

82213380856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10276672613 (or 10276672609 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 82213380856 in words is "eighty-two billion, two hundred thirteen million, three hundred eighty thousand, eight hundred fifty-six".