82091843951 has 8 divisors (see below), whose sum is σ = 88652864160. Its totient is φ = 75566004192.

The previous prime is 82091843923. The next prime is 82091843987. The reversal of 82091843951 is 15934819028.

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

It is a cyclic number.

It is not a de Polignac number, because 82091843951 - 2²⁶ = 82024735087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82091843951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82091843851) 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, 8790260 + ... + 8799593.

It is an arithmetic number, because the mean of its divisors is an integer number (11081608020).

Almost surely, 2^82091843951 is an apocalyptic number.

82091843951 is a deficient number, since it is larger than the sum of its proper divisors (6561020209).

82091843951 is a wasteful number, since it uses less digits than its factorization.

82091843951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17590225.

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 82091843951 in words is "eighty-two billion, ninety-one million, eight hundred forty-three thousand, nine hundred fifty-one".