6538628000 has 48 divisors (see below), whose sum is σ = 16065418824. Its totient is φ = 2615449600.

The previous prime is 6538627993. The next prime is 6538628027. The reversal of 6538628000 is 8268356.

It can be written as a sum of positive squares in 4 ways, for example, as 3215797264 + 3322830736 = 56708^2 + 57644^2 .

It is a super-2 number, since 2×6538628000² = 85507312244768000000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813329 + ... + 821328.

Almost surely, 2^6538628000 is an apocalyptic number.

It is an amenable number.

6538628000 is an abundant number, since it is smaller than the sum of its proper divisors (9526790824).

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

6538628000 is a wasteful number, since it uses less digits than its factorization.

6538628000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634682 (or 1634664 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 6538628000 is about 80861.7833095462. The cubic root of 6538628000 is about 1869.9451879422.

The spelling of 6538628000 in words is "six billion, five hundred thirty-eight million, six hundred twenty-eight thousand".