5680438691 has 4 divisors (see below), whose sum is σ = 5696262000. Its totient is φ = 5664615384.

The previous prime is 5680438679. The next prime is 5680438711. The reversal of 5680438691 is 1968340865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1968340865 = 5 ⋅393668173.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5680438691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5680438591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7911116 + ... + 7911833.

It is an arithmetic number, because the mean of its divisors is an integer number (1424065500).

Almost surely, 2^5680438691 is an apocalyptic number.

5680438691 is a deficient number, since it is larger than the sum of its proper divisors (15823309).

5680438691 is a wasteful number, since it uses less digits than its factorization.

5680438691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15823308.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 5680438691 is about 75368.6850820684. The cubic root of 5680438691 is about 1784.2702141650.

The spelling of 5680438691 in words is "five billion, six hundred eighty million, four hundred thirty-eight thousand, six hundred ninety-one".