6537968408 has 16 divisors (see below), whose sum is σ = 12791677680. Its totient is φ = 3126854368.

The previous prime is 6537968407. The next prime is 6537968447. The reversal of 6537968408 is 8048697356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6537968407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17766035 + ... + 17766402.

It is an arithmetic number, because the mean of its divisors is an integer number (799479855).

Almost surely, 2^6537968408 is an apocalyptic number.

It is an amenable number.

6537968408 is a deficient number, since it is larger than the sum of its proper divisors (6253709272).

6537968408 is a wasteful number, since it uses less digits than its factorization.

6537968408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35532466 (or 35532462 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 56.

The square root of 6537968408 is about 80857.7046916371. The cubic root of 6537968408 is about 1869.8823081678.

The spelling of 6537968408 in words is "six billion, five hundred thirty-seven million, nine hundred sixty-eight thousand, four hundred eight".