6844077720 has 128 divisors (see below), whose sum is σ = 23600376000. Its totient is φ = 1762145280.

The previous prime is 6844077679. The next prime is 6844077727. The reversal of 6844077720 is 277704486.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6844077727) 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 31 ways as a sum of consecutive naturals, for example, 77941 + ... + 140580.

Almost surely, 2^6844077720 is an apocalyptic number.

6844077720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6844077720 is an abundant number, since it is smaller than the sum of its proper divisors (16756298280).

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

6844077720 is a wasteful number, since it uses less digits than its factorization.

6844077720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218570 (or 218560 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The square root of 6844077720 is about 82728.9412479091. The cubic root of 6844077720 is about 1898.6211343842.

The spelling of 6844077720 in words is "six billion, eight hundred forty-four million, seventy-seven thousand, seven hundred twenty".