6435264038240 has 48 divisors (see below), whose sum is σ = 15205938814080. Its totient is φ = 2573660743680.

The previous prime is 6435264038209. The next prime is 6435264038243. The reversal of 6435264038240 is 428304625346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6435264038243) 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, 2546105 + ... + 4399224.

It is an arithmetic number, because the mean of its divisors is an integer number (316790391960).

Almost surely, 2^{6435264038240} is an apocalyptic number.

It is an amenable number.

6435264038240 is an abundant number, since it is smaller than the sum of its proper divisors (8770674775840).

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

6435264038240 is a wasteful number, since it uses less digits than its factorization.

6435264038240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951135 (or 6951127 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 6435264038240 in words is "six trillion, four hundred thirty-five billion, two hundred sixty-four million, thirty-eight thousand, two hundred forty".