82715208812 has 6 divisors (see below), whose sum is σ = 144751615428. Its totient is φ = 41357604404.

The previous prime is 82715208787. The next prime is 82715208827. The reversal of 82715208812 is 21880251728.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10339401098 + ... + 10339401105.

It is an arithmetic number, because the mean of its divisors is an integer number (24125269238).

Almost surely, 2^82715208812 is an apocalyptic number.

It is an amenable number.

82715208812 is a deficient number, since it is larger than the sum of its proper divisors (62036406616).

82715208812 is a wasteful number, since it uses less digits than its factorization.

82715208812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20678802207 (or 20678802205 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 44.

The spelling of 82715208812 in words is "eighty-two billion, seven hundred fifteen million, two hundred eight thousand, eight hundred twelve".