8570421013986 has 128 divisors (see below), whose sum is σ = 21082360723200. Its totient is φ = 2563635225600.

The previous prime is 8570421013963. The next prime is 8570421014011. The reversal of 8570421013986 is 6893101240758.

8570421013986 is a `hidden beast` number, since 8 + 5 + 7 + 0 + 421 + 0 + 139 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 31057405 + ... + 31332143.

It is an arithmetic number, because the mean of its divisors is an integer number (164705943150).

It is a 1-persistent number, because it is pandigital, but 2⋅8570421013986 = 17140842027972 is not.

Almost surely, 2^{8570421013986} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8570421013986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10541180361600).

8570421013986 is an abundant number, since it is smaller than the sum of its proper divisors (12511939709214).

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

8570421013986 is a wasteful number, since it uses less digits than its factorization.

8570421013986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276001 (or 275995 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 8570421013986 in words is "eight trillion, five hundred seventy billion, four hundred twenty-one million, thirteen thousand, nine hundred eighty-six".