6761491968 has 240 divisors, whose sum is σ = 22861643904. Its totient is φ = 1756016640.

The previous prime is 6761491967. The next prime is 6761491993. The reversal of 6761491968 is 8691941676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6761491963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 823821 + ... + 831987.

Almost surely, 2^6761491968 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 6761491968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11430821952).

6761491968 is an abundant number, since it is smaller than the sum of its proper divisors (16100151936).

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

6761491968 is a wasteful number, since it uses less digits than its factorization.

6761491968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8213 (or 8190 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 6761491968 is about 82228.2917735739. The cubic root of 6761491968 is about 1890.9534832325.

The spelling of 6761491968 in words is "six billion, seven hundred sixty-one million, four hundred ninety-one thousand, nine hundred sixty-eight".