6538662026800 has 120 divisors (see below), whose sum is σ = 16230531409664. Its totient is φ = 2529837031680.

The previous prime is 6538662026753. The next prime is 6538662026801. The reversal of 6538662026800 is 86202668356.

It is a super-2 number, since 2×6538662026800² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6538662026801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73812 + ... + 3617011.

Almost surely, 2^{6538662026800} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6538662026800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8115265704832).

6538662026800 is an abundant number, since it is smaller than the sum of its proper divisors (9691869382864).

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

6538662026800 is a wasteful number, since it uses less digits than its factorization.

6538662026800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690987 (or 3690976 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 6538662026800 in words is "six trillion, five hundred thirty-eight billion, six hundred sixty-two million, twenty-six thousand, eight hundred".