5634686657 has 4 divisors (see below), whose sum is σ = 5686381140. Its totient is φ = 5582992176.

The previous prime is 5634686647. The next prime is 5634686699. The reversal of 5634686657 is 7566864365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7566864365 = 5 ⋅1513372873.

It can be written as a sum of positive squares in 2 ways, for example, as 2972539441 + 2662147216 = 54521^2 + 51596^2 .

It is a cyclic number.

It is not a de Polignac number, because 5634686657 - 2⁸ = 5634686401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5634686647) 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, 25847078 + ... + 25847295.

It is an arithmetic number, because the mean of its divisors is an integer number (1421595285).

Almost surely, 2^5634686657 is an apocalyptic number.

It is an amenable number.

5634686657 is a deficient number, since it is larger than the sum of its proper divisors (51694483).

5634686657 is a wasteful number, since it uses less digits than its factorization.

5634686657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51694482.

The product of its digits is 21772800, while the sum is 56.

The square root of 5634686657 is about 75064.5499353723. The cubic root of 5634686657 is about 1779.4669380722.

The spelling of 5634686657 in words is "five billion, six hundred thirty-four million, six hundred eighty-six thousand, six hundred fifty-seven".