8871558051642 has 128 divisors (see below), whose sum is σ = 20986368399360. Its totient is φ = 2464766496000.

The previous prime is 8871558051637. The next prime is 8871558051679. The reversal of 8871558051642 is 2461508551788.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125911459 + ... + 125981897.

It is an arithmetic number, because the mean of its divisors is an integer number (163956003120).

Almost surely, 2^{8871558051642} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8871558051642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10493184199680).

8871558051642 is an abundant number, since it is smaller than the sum of its proper divisors (12114810347718).

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

8871558051642 is a wasteful number, since it uses less digits than its factorization.

8871558051642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71460.

The product of its (nonzero) digits is 21504000, while the sum is 60.

The spelling of 8871558051642 in words is "eight trillion, eight hundred seventy-one billion, five hundred fifty-eight million, fifty-one thousand, six hundred forty-two".