6625884621 has 8 divisors (see below), whose sum is σ = 8835211584. Its totient is φ = 4416907040.

The previous prime is 6625884619. The next prime is 6625884673. The reversal of 6625884621 is 1264885266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6625884621 - 2¹ = 6625884619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6625884121) 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, 39321 + ... + 121646.

It is an arithmetic number, because the mean of its divisors is an integer number (1104401448).

Almost surely, 2^6625884621 is an apocalyptic number.

It is an amenable number.

6625884621 is a deficient number, since it is larger than the sum of its proper divisors (2209326963).

6625884621 is a wasteful number, since it uses less digits than its factorization.

6625884621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174691.

The product of its digits is 1105920, while the sum is 48.

The square root of 6625884621 is about 81399.5369827126. The cubic root of 6625884621 is about 1878.2264680884.

The spelling of 6625884621 in words is "six billion, six hundred twenty-five million, eight hundred eighty-four thousand, six hundred twenty-one".