84139976148 has 12 divisors (see below), whose sum is σ = 196326611040. Its totient is φ = 28046658712.

The previous prime is 84139976147. The next prime is 84139976161. The reversal of 84139976148 is 84167993148.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 84139976091 and 84139976100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84139976147) 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, 3505832328 + ... + 3505832351.

It is an arithmetic number, because the mean of its divisors is an integer number (16360550920).

Almost surely, 2^84139976148 is an apocalyptic number.

It is an amenable number.

84139976148 is an abundant number, since it is smaller than the sum of its proper divisors (112186634892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84139976148 is a wasteful number, since it uses less digits than its factorization.

84139976148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7011664686 (or 7011664684 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 60.

The spelling of 84139976148 in words is "eighty-four billion, one hundred thirty-nine million, nine hundred seventy-six thousand, one hundred forty-eight".