82848337921 has 4 divisors (see below), whose sum is σ = 82884885552. Its totient is φ = 82811790292.

The previous prime is 82848337909. The next prime is 82848337963. The reversal of 82848337921 is 12973384828.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82848337921 - 2²¹ = 82846240769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82848337021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18270415 + ... + 18274948.

It is an arithmetic number, because the mean of its divisors is an integer number (20721221388).

Almost surely, 2^82848337921 is an apocalyptic number.

It is an amenable number.

82848337921 is a deficient number, since it is larger than the sum of its proper divisors (36547631).

82848337921 is a wasteful number, since it uses less digits than its factorization.

82848337921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36547630.

The product of its digits is 4644864, while the sum is 55.

The spelling of 82848337921 in words is "eighty-two billion, eight hundred forty-eight million, three hundred thirty-seven thousand, nine hundred twenty-one".