8220431477880 has 48 divisors (see below), whose sum is σ = 26716402304280. Its totient is φ = 2192115060672.

The previous prime is 8220431477879. The next prime is 8220431477887. The reversal of 8220431477880 is 887741340228.

8220431477880 is a `hidden beast` number, since 8 + 2 + 20 + 431 + 47 + 78 + 80 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220431477887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11417265582 + ... + 11417266301.

Almost surely, 2^{8220431477880} is an apocalyptic number.

It is an amenable number.

8220431477880 is an abundant number, since it is smaller than the sum of its proper divisors (18495970826400).

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

8220431477880 is a wasteful number, since it uses less digits than its factorization.

8220431477880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22834531900 (or 22834531893 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 8220431477880 in words is "eight trillion, two hundred twenty billion, four hundred thirty-one million, four hundred seventy-seven thousand, eight hundred eighty".