6621042280 has 32 divisors (see below), whose sum is σ = 15214314240. Its totient is φ = 2592066880.

The previous prime is 6621042209. The next prime is 6621042283. The reversal of 6621042280 is 822401266.

It is not an unprimeable number, because it can be changed into a prime (6621042283) 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, 1759036 + ... + 1762795.

It is an arithmetic number, because the mean of its divisors is an integer number (475447320).

Almost surely, 2^6621042280 is an apocalyptic number.

It is an amenable number.

6621042280 is an abundant number, since it is smaller than the sum of its proper divisors (8593271960).

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

6621042280 is a wasteful number, since it uses less digits than its factorization.

6621042280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521889 (or 3521885 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 6621042280 is about 81369.7872677568. The cubic root of 6621042280 is about 1877.7688069576.

The spelling of 6621042280 in words is "six billion, six hundred twenty-one million, forty-two thousand, two hundred eighty".