82091595815 has 8 divisors (see below), whose sum is σ = 98684891568. Its totient is φ = 65556625600.

The previous prime is 82091595811. The next prime is 82091595829. The reversal of 82091595815 is 51859519028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82091595815 - 2² = 82091595811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82091595811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14578286 + ... + 14583915.

It is an arithmetic number, because the mean of its divisors is an integer number (12335611446).

Almost surely, 2^82091595815 is an apocalyptic number.

82091595815 is a deficient number, since it is larger than the sum of its proper divisors (16593295753).

82091595815 is a wasteful number, since it uses less digits than its factorization.

82091595815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29162769.

The product of its (nonzero) digits is 1296000, while the sum is 53.

The spelling of 82091595815 in words is "eighty-two billion, ninety-one million, five hundred ninety-five thousand, eight hundred fifteen".