82143636381381 has 32 divisors (see below), whose sum is σ = 110338080652800. Its totient is φ = 54356978491200.

The previous prime is 82143636381311. The next prime is 82143636381419. The reversal of 82143636381381 is 18318363634128.

It is not a de Polignac number, because 82143636381381 - 2⁷ = 82143636381253 is a prime.

It is a super-2 number, since 2×82143636381381² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82143636381311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3076642570 + ... + 3076669268.

It is an arithmetic number, because the mean of its divisors is an integer number (3448065020400).

Almost surely, 2^{82143636381381} is an apocalyptic number.

It is an amenable number.

82143636381381 is a deficient number, since it is larger than the sum of its proper divisors (28194444271419).

82143636381381 is a wasteful number, since it uses less digits than its factorization.

82143636381381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37377.

The product of its digits is 11943936, while the sum is 57.

The spelling of 82143636381381 in words is "eighty-two trillion, one hundred forty-three billion, six hundred thirty-six million, three hundred eighty-one thousand, three hundred eighty-one".