6750402688 has 64 divisors (see below), whose sum is σ = 14501340000. Its totient is φ = 3119523840.

The previous prime is 6750402649. The next prime is 6750402727. The reversal of 6750402688 is 8862040576.

It is an interprime number because it is at equal distance from previous prime (6750402649) and next prime (6750402727).

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65863 + ... + 133561.

Almost surely, 2^6750402688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6750402688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7250670000).

6750402688 is an abundant number, since it is smaller than the sum of its proper divisors (7750937312).

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

6750402688 is a wasteful number, since it uses less digits than its factorization.

6750402688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67773 (or 67761 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 6750402688 is about 82160.8342703505. The cubic root of 6750402688 is about 1889.9191559533.

The spelling of 6750402688 in words is "six billion, seven hundred fifty million, four hundred two thousand, six hundred eighty-eight".