82121895116 has 12 divisors (see below), whose sum is σ = 143722857432. Its totient is φ = 41058221568.

The previous prime is 82121895103. The next prime is 82121895127. The reversal of 82121895116 is 61159812128.

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, 612950 + ... + 734813.

It is an arithmetic number, because the mean of its divisors is an integer number (11976904786).

Almost surely, 2^82121895116 is an apocalyptic number.

It is an amenable number.

82121895116 is a deficient number, since it is larger than the sum of its proper divisors (61600962316).

82121895116 is a wasteful number, since it uses less digits than its factorization.

82121895116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363000 (or 1362998 counting only the distinct ones).

The product of its digits is 69120, while the sum is 44.

The spelling of 82121895116 in words is "eighty-two billion, one hundred twenty-one million, eight hundred ninety-five thousand, one hundred sixteen".