8477520821264 has 40 divisors (see below), whose sum is σ = 17965674513120. Its totient is φ = 3843251193600.

The previous prime is 8477520821261. The next prime is 8477520821291. The reversal of 8477520821264 is 4621280257748.

It is not an unprimeable number, because it can be changed into a prime (8477520821261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63479117 + ... + 63612524.

It is an arithmetic number, because the mean of its divisors is an integer number (449141862828).

Almost surely, 2^{8477520821264} is an apocalyptic number.

It is an amenable number.

8477520821264 is an abundant number, since it is smaller than the sum of its proper divisors (9488153691856).

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

8477520821264 is a wasteful number, since it uses less digits than its factorization.

8477520821264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127092039 (or 127092033 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 56.

The spelling of 8477520821264 in words is "eight trillion, four hundred seventy-seven billion, five hundred twenty million, eight hundred twenty-one thousand, two hundred sixty-four".