6688683837490 has 16 divisors (see below), whose sum is σ = 12134431153152. Its totient is φ = 2654406813744.

The previous prime is 6688683837377. The next prime is 6688683837491. The reversal of 6688683837490 is 947383868866.

It is not an unprimeable number, because it can be changed into a prime (6688683837491) 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, 2633338824 + ... + 2633341363.

It is an arithmetic number, because the mean of its divisors is an integer number (758401947072).

Almost surely, 2^{6688683837490} is an apocalyptic number.

6688683837490 is a deficient number, since it is larger than the sum of its proper divisors (5445747315662).

6688683837490 is a wasteful number, since it uses less digits than its factorization.

6688683837490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266680321.

The product of its (nonzero) digits is 2006581248, while the sum is 76.

The spelling of 6688683837490 in words is "six trillion, six hundred eighty-eight billion, six hundred eighty-three million, eight hundred thirty-seven thousand, four hundred ninety".