8242571641620 has 24 divisors (see below), whose sum is σ = 23079200596704. Its totient is φ = 2198019104416.

The previous prime is 8242571641567. The next prime is 8242571641637. The reversal of 8242571641620 is 261461752428.

It is a self number, because there is not a number n which added to its sum of digits gives 8242571641620.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68688096954 + ... + 68688097073.

It is an arithmetic number, because the mean of its divisors is an integer number (961633358196).

Almost surely, 2^{8242571641620} is an apocalyptic number.

It is an amenable number.

8242571641620 is an abundant number, since it is smaller than the sum of its proper divisors (14836628955084).

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

8242571641620 is a wasteful number, since it uses less digits than its factorization.

8242571641620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137376194039 (or 137376194037 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 8242571641620 in words is "eight trillion, two hundred forty-two billion, five hundred seventy-one million, six hundred forty-one thousand, six hundred twenty".