6530537428840 has 32 divisors (see below), whose sum is σ = 15558045052680. Its totient is φ = 2458555267072.

The previous prime is 6530537428787. The next prime is 6530537428847. The reversal of 6530537428840 is 488247350356.

It can be written as a sum of positive squares in 4 ways, for example, as 5482088400996 + 1048449027844 = 2341386^2 + 1023938^2 .

It is not an unprimeable number, because it can be changed into a prime (6530537428847) 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, 4801865077 + ... + 4801866436.

Almost surely, 2^{6530537428840} is an apocalyptic number.

It is an amenable number.

6530537428840 is an abundant number, since it is smaller than the sum of its proper divisors (9027507623840).

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

6530537428840 is a wasteful number, since it uses less digits than its factorization.

6530537428840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9603731541 (or 9603731537 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 6530537428840 in words is "six trillion, five hundred thirty billion, five hundred thirty-seven million, four hundred twenty-eight thousand, eight hundred forty".