82481385471 has 4 divisors (see below), whose sum is σ = 109975180632. Its totient is φ = 54987590312.

The previous prime is 82481385463. The next prime is 82481385473. The reversal of 82481385471 is 17458318428.

It is a happy number.

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 82481385471 - 2³ = 82481385463 is a prime.

It is a super-3 number, since 3×82481385471³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82481385473) 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, 13746897576 + ... + 13746897581.

It is an arithmetic number, because the mean of its divisors is an integer number (27493795158).

Almost surely, 2^82481385471 is an apocalyptic number.

82481385471 is a deficient number, since it is larger than the sum of its proper divisors (27493795161).

82481385471 is a wasteful number, since it uses less digits than its factorization.

82481385471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27493795160.

The product of its digits is 1720320, while the sum is 51.

The spelling of 82481385471 in words is "eighty-two billion, four hundred eighty-one million, three hundred eighty-five thousand, four hundred seventy-one".