82022381951 has 4 divisors (see below), whose sum is σ = 82024393992. Its totient is φ = 82020369912.

The previous prime is 82022381923. The next prime is 82022381957. The reversal of 82022381951 is 15918322028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82022381951 is a prime.

It is a super-2 number, since 2×82022381951² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82022381899 and 82022381908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82022381957) 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, 943580 + ... + 1026833.

It is an arithmetic number, because the mean of its divisors is an integer number (20506098498).

Almost surely, 2^82022381951 is an apocalyptic number.

82022381951 is a deficient number, since it is larger than the sum of its proper divisors (2012041).

82022381951 is a wasteful number, since it uses less digits than its factorization.

82022381951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012040.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 82022381951 in words is "eighty-two billion, twenty-two million, three hundred eighty-one thousand, nine hundred fifty-one".