82474055047 has 4 divisors (see below), whose sum is σ = 82509287656. Its totient is φ = 82438822440.

The previous prime is 82474055033. The next prime is 82474055071. The reversal of 82474055047 is 74055047428.

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

It is a cyclic number.

It is not a de Polignac number, because 82474055047 - 2¹⁹ = 82473530759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82474054988 and 82474055006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82474055947) 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, 17612793 + ... + 17617474.

It is an arithmetic number, because the mean of its divisors is an integer number (20627321914).

Almost surely, 2^82474055047 is an apocalyptic number.

82474055047 is a deficient number, since it is larger than the sum of its proper divisors (35232609).

82474055047 is a wasteful number, since it uses less digits than its factorization.

82474055047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35232608.

The product of its (nonzero) digits is 1254400, while the sum is 46.

The spelling of 82474055047 in words is "eighty-two billion, four hundred seventy-four million, fifty-five thousand, forty-seven".