6628485761 has 8 divisors (see below), whose sum is σ = 6750901248. Its totient is φ = 6506514000.

The previous prime is 6628485709. The next prime is 6628485763. The reversal of 6628485761 is 1675848266.

It is a happy number.

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 6628485761 - 2²⁶ = 6561376897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6628485763) 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, 80705 + ... + 140606.

It is an arithmetic number, because the mean of its divisors is an integer number (843862656).

Almost surely, 2^6628485761 is an apocalyptic number.

6628485761 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6628485761 is a deficient number, since it is larger than the sum of its proper divisors (122415487).

6628485761 is a wasteful number, since it uses less digits than its factorization.

6628485761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221863.

The product of its digits is 3870720, while the sum is 53.

The square root of 6628485761 is about 81415.5130242388. The cubic root of 6628485761 is about 1878.4722159448.

The spelling of 6628485761 in words is "six billion, six hundred twenty-eight million, four hundred eighty-five thousand, seven hundred sixty-one".