84856146172 has 48 divisors (see below), whose sum is σ = 174367502848. Its totient is φ = 35370146880.

The previous prime is 84856146161. The next prime is 84856146173. The reversal of 84856146172 is 27164165848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84856146173) 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 15 ways as a sum of consecutive naturals, for example, 2876803 + ... + 2906149.

Almost surely, 2^84856146172 is an apocalyptic number.

It is an amenable number.

84856146172 is an abundant number, since it is smaller than the sum of its proper divisors (89511356676).

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

84856146172 is a wasteful number, since it uses less digits than its factorization.

84856146172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32186 (or 32184 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

The spelling of 84856146172 in words is "eighty-four billion, eight hundred fifty-six million, one hundred forty-six thousand, one hundred seventy-two".