84134709172 has 48 divisors (see below), whose sum is σ = 160391448000. Its totient is φ = 38464118784.

The previous prime is 84134709161. The next prime is 84134709173. The reversal of 84134709172 is 27190743148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84134709173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7331383 + ... + 7342849.

It is an arithmetic number, because the mean of its divisors is an integer number (3341488500).

Almost surely, 2^84134709172 is an apocalyptic number.

It is an amenable number.

84134709172 is a deficient number, since it is larger than the sum of its proper divisors (76256738828).

84134709172 is a wasteful number, since it uses less digits than its factorization.

84134709172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14848 (or 14846 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 84134709172 in words is "eighty-four billion, one hundred thirty-four million, seven hundred nine thousand, one hundred seventy-two".