8508038350021 has 24 divisors (see below), whose sum is σ = 10086768772416. Its totient is φ = 7029192890880.

The previous prime is 8508038349997. The next prime is 8508038350039. The reversal of 8508038350021 is 1200538308058.

It is not a de Polignac number, because 8508038350021 - 2⁹ = 8508038349509 is a prime.

It is a super-2 number, since 2×8508038350021² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8508038350021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8508038350421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3123340 + ... + 5174101.

It is an arithmetic number, because the mean of its divisors is an integer number (420282032184).

Almost surely, 2^{8508038350021} is an apocalyptic number.

It is an amenable number.

8508038350021 is a deficient number, since it is larger than the sum of its proper divisors (1578730422395).

8508038350021 is a wasteful number, since it uses less digits than its factorization.

8508038350021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297629 (or 8297592 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 8508038350021 in words is "eight trillion, five hundred eight billion, thirty-eight million, three hundred fifty thousand, twenty-one".