6922491768 has 128 divisors (see below), whose sum is σ = 20303712000. Its totient is φ = 2179301760.

The previous prime is 6922491739. The next prime is 6922491827. The reversal of 6922491768 is 8671942296.

6922491768 is a `hidden beast` number, since 6 + 92 + 2 + 491 + 7 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1421658 + ... + 1426518.

It is an arithmetic number, because the mean of its divisors is an integer number (158622750).

Almost surely, 2^6922491768 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 6922491768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10151856000).

6922491768 is an abundant number, since it is smaller than the sum of its proper divisors (13381220232).

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

6922491768 is a wasteful number, since it uses less digits than its factorization.

6922491768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242 (or 5232 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 6922491768 is about 83201.5130150889. The cubic root of 6922491768 is about 1905.8445855059.

The spelling of 6922491768 in words is "six billion, nine hundred twenty-two million, four hundred ninety-one thousand, seven hundred sixty-eight".