82144667782 has 4 divisors (see below), whose sum is σ = 123217001676. Its totient is φ = 41072333890.

The previous prime is 82144667767. The next prime is 82144667791. The reversal of 82144667782 is 28776644128.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20536166944 + ... + 20536166947.

It is an arithmetic number, because the mean of its divisors is an integer number (30804250419).

Almost surely, 2^82144667782 is an apocalyptic number.

82144667782 is a deficient number, since it is larger than the sum of its proper divisors (41072333894).

82144667782 is a wasteful number, since it uses less digits than its factorization.

82144667782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41072333893.

The product of its digits is 7225344, while the sum is 55.

The spelling of 82144667782 in words is "eighty-two billion, one hundred forty-four million, six hundred sixty-seven thousand, seven hundred eighty-two".