6737664687 has 8 divisors (see below), whose sum is σ = 9674595504. Its totient is φ = 4146255168.

The previous prime is 6737664677. The next prime is 6737664691. The reversal of 6737664687 is 7864667376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6737664687 - 2⁴ = 6737664671 is a prime.

It is a super-2 number, since 2×6737664687² = 90792250868893615938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6737664687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6737664617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86380278 + ... + 86380355.

It is an arithmetic number, because the mean of its divisors is an integer number (1209324438).

Almost surely, 2^6737664687 is an apocalyptic number.

6737664687 is a deficient number, since it is larger than the sum of its proper divisors (2936930817).

6737664687 is a wasteful number, since it uses less digits than its factorization.

6737664687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172760649.

The product of its digits is 42674688, while the sum is 60.

The square root of 6737664687 is about 82083.2789732477. The cubic root of 6737664687 is about 1888.7296491189.

The spelling of 6737664687 in words is "six billion, seven hundred thirty-seven million, six hundred sixty-four thousand, six hundred eighty-seven".