82031462477 has 4 divisors (see below), whose sum is σ = 82169796060. Its totient is φ = 81893128896.

The previous prime is 82031462473. The next prime is 82031462483. The reversal of 82031462477 is 77426413028.

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 17367549796 + 64663912681 = 131786^2 + 254291^2 .

It is a cyclic number.

It is not a de Polignac number, because 82031462477 - 2² = 82031462473 is a prime.

It is a super-2 number, since 2×82031462477² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82031462473) 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, 69165902 + ... + 69167087.

It is an arithmetic number, because the mean of its divisors is an integer number (20542449015).

Almost surely, 2^82031462477 is an apocalyptic number.

It is an amenable number.

82031462477 is a deficient number, since it is larger than the sum of its proper divisors (138333583).

82031462477 is a wasteful number, since it uses less digits than its factorization.

82031462477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138333582.

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 82031462477 in words is "eighty-two billion, thirty-one million, four hundred sixty-two thousand, four hundred seventy-seven".