82517802812 has 12 divisors (see below), whose sum is σ = 144612160056. Its totient is φ = 41200042800.

The previous prime is 82517802797. The next prime is 82517802821. The reversal of 82517802812 is 21820871528.

It is a happy number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14711498 + ... + 14717105.

It is an arithmetic number, because the mean of its divisors is an integer number (12051013338).

Almost surely, 2^82517802812 is an apocalyptic number.

It is an amenable number.

82517802812 is a deficient number, since it is larger than the sum of its proper divisors (62094357244).

82517802812 is a wasteful number, since it uses less digits than its factorization.

82517802812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29429308 (or 29429306 counting only the distinct ones).

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

The spelling of 82517802812 in words is "eighty-two billion, five hundred seventeen million, eight hundred two thousand, eight hundred twelve".