5691620680704 has 1452 divisors, whose sum is σ = 21206617805484. Its totient is φ = 1516975423488.

The previous prime is 5691620680693. The next prime is 5691620680709. The reversal of 5691620680704 is 4070860261965.

5691620680704 is a `hidden beast` number, since 5 + 6 + 9 + 1 + 620 + 6 + 8 + 0 + 7 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1851776640000 + 3839844040704 = 1360800^2 + 1959552^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5691620680709) 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 131 ways as a sum of consecutive naturals, for example, 50368324552 + ... + 50368324664.

Almost surely, 2^{5691620680704} is an apocalyptic number.

5691620680704 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5691620680704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10603308902742).

5691620680704 is an abundant number, since it is smaller than the sum of its proper divisors (15514997124780).

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

5691620680704 is an equidigital number, since it uses as much as digits as its factorization.

5691620680704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 5691620680704 in words is "five trillion, six hundred ninety-one billion, six hundred twenty million, six hundred eighty thousand, seven hundred four".