82447050061 has 4 divisors (see below), whose sum is σ = 83373421500. Its totient is φ = 81520678624.

The previous prime is 82447050031. The next prime is 82447050121. The reversal of 82447050061 is 16005074428.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4344128100 + 78102921961 = 65910^2 + 279469^2 .

It is a cyclic number.

It is not a de Polignac number, because 82447050061 - 2²³ = 82438661453 is a prime.

It is a super-2 number, since 2×82447050061² (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 82447050061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82447050031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463185586 + ... + 463185763.

It is an arithmetic number, because the mean of its divisors is an integer number (20843355375).

Almost surely, 2^82447050061 is an apocalyptic number.

It is an amenable number.

82447050061 is a deficient number, since it is larger than the sum of its proper divisors (926371439).

82447050061 is an equidigital number, since it uses as much as digits as its factorization.

82447050061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926371438.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 82447050061 in words is "eighty-two billion, four hundred forty-seven million, fifty thousand, sixty-one".