4656685687 has 2 divisors, whose sum is σ = 4656685688. Its totient is φ = 4656685686.

The previous prime is 4656685681. The next prime is 4656685697. The reversal of 4656685687 is 7865866564.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4656685687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4656685681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2328342843 + 2328342844.

It is an arithmetic number, because the mean of its divisors is an integer number (2328342844).

Almost surely, 2^4656685687 is an apocalyptic number.

4656685687 is a deficient number, since it is larger than the sum of its proper divisors (1).

4656685687 is an equidigital number, since it uses as much as digits as its factorization.

4656685687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58060800, while the sum is 61.

The square root of 4656685687 is about 68239.9127124295. The cubic root of 4656685687 is about 1669.9070892649.

The spelling of 4656685687 in words is "four billion, six hundred fifty-six million, six hundred eighty-five thousand, six hundred eighty-seven".