84642703452 has 144 divisors (see below), whose sum is σ = 232348308192. Its totient is φ = 25877053440.

The previous prime is 84642703447. The next prime is 84642703493. The reversal of 84642703452 is 25430724648.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 84642703398 and 84642703407.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 12128188 + ... + 12135164.

It is an arithmetic number, because the mean of its divisors is an integer number (1613529918).

Almost surely, 2^84642703452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84642703452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116174154096).

84642703452 is an abundant number, since it is smaller than the sum of its proper divisors (147705604740).

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

84642703452 is a wasteful number, since it uses less digits than its factorization.

84642703452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7508 (or 7503 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 84642703452 in words is "eighty-four billion, six hundred forty-two million, seven hundred three thousand, four hundred fifty-two".