84715121142 has 48 divisors (see below), whose sum is σ = 187607160000. Its totient is φ = 27615085056.

The previous prime is 84715121137. The next prime is 84715121159. The reversal of 84715121142 is 24112151748.

It is a junction number, because it is equal to n+sod(n) for n = 84715121097 and 84715121106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1016568 + ... + 1096740.

It is an arithmetic number, because the mean of its divisors is an integer number (3908482500).

Almost surely, 2^84715121142 is an apocalyptic number.

84715121142 is an abundant number, since it is smaller than the sum of its proper divisors (102892038858).

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

84715121142 is a wasteful number, since it uses less digits than its factorization.

84715121142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81477 (or 81474 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The spelling of 84715121142 in words is "eighty-four billion, seven hundred fifteen million, one hundred twenty-one thousand, one hundred forty-two".