82291014921 has 8 divisors (see below), whose sum is σ = 111224385760. Its totient is φ = 54109160352.

The previous prime is 82291014917. The next prime is 82291014937. The reversal of 82291014921 is 12941019228.

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

It is not a de Polignac number, because 82291014921 - 2² = 82291014917 is a prime.

It is a super-2 number, since 2×82291014921² (a number of 23 digits) contains 22 as substring.

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 82291014921.

It is not an unprimeable number, because it can be changed into a prime (82291014121) 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, 187878811 + ... + 187879248.

It is an arithmetic number, because the mean of its divisors is an integer number (13903048220).

Almost surely, 2^82291014921 is an apocalyptic number.

It is an amenable number.

82291014921 is a deficient number, since it is larger than the sum of its proper divisors (28933370839).

82291014921 is a wasteful number, since it uses less digits than its factorization.

82291014921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375758135.

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 82291014921 in words is "eighty-two billion, two hundred ninety-one million, fourteen thousand, nine hundred twenty-one".