6628890054 has 8 divisors (see below), whose sum is σ = 13257780120. Its totient is φ = 2209630016.

The previous prime is 6628890043. The next prime is 6628890061. The reversal of 6628890054 is 4500988266.

It is a happy number.

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

6628890054 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 6628889985 and 6628890012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552407499 + ... + 552407510.

It is an arithmetic number, because the mean of its divisors is an integer number (1657222515).

Almost surely, 2^6628890054 is an apocalyptic number.

6628890054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6628890054 is a wasteful number, since it uses less digits than its factorization.

6628890054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104815014.

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 6628890054 is about 81417.9958854306. The cubic root of 6628890054 is about 1878.5104065540.

The spelling of 6628890054 in words is "six billion, six hundred twenty-eight million, eight hundred ninety thousand, fifty-four".