82154874142 has 12 divisors (see below), whose sum is σ = 135453697848. Its totient is φ = 37343124500.

The previous prime is 82154874119. The next prime is 82154874143. The reversal of 82154874142 is 24147845128.

It is a junction number, because it is equal to n+sod(n) for n = 82154874092 and 82154874101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82154874143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169741234 + ... + 169741717.

It is an arithmetic number, because the mean of its divisors is an integer number (11287808154).

Almost surely, 2^82154874142 is an apocalyptic number.

82154874142 is a deficient number, since it is larger than the sum of its proper divisors (53298823706).

82154874142 is a wasteful number, since it uses less digits than its factorization.

82154874142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339482975 (or 339482964 counting only the distinct ones).

The product of its digits is 573440, while the sum is 46.

The spelling of 82154874142 in words is "eighty-two billion, one hundred fifty-four million, eight hundred seventy-four thousand, one hundred forty-two".