5168236657 has 4 divisors (see below), whose sum is σ = 5472250596. Its totient is φ = 4864222720.

The previous prime is 5168236637. The next prime is 5168236709. The reversal of 5168236657 is 7566328615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7566328615 = 5 ⋅1513265723.

It can be written as a sum of positive squares in 2 ways, for example, as 3510444001 + 1657792656 = 59249^2 + 40716^2 .

It is a cyclic number.

It is not a de Polignac number, because 5168236657 - 2¹¹ = 5168234609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5168236657.

It is not an unprimeable number, because it can be changed into a prime (5168236637) 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, 152006944 + ... + 152006977.

It is an arithmetic number, because the mean of its divisors is an integer number (1368062649).

Almost surely, 2^5168236657 is an apocalyptic number.

It is an amenable number.

5168236657 is a deficient number, since it is larger than the sum of its proper divisors (304013939).

5168236657 is a wasteful number, since it uses less digits than its factorization.

5168236657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304013938.

The product of its digits is 1814400, while the sum is 49.

The square root of 5168236657 is about 71890.4489970678. The cubic root of 5168236657 is about 1728.9434845771.

The spelling of 5168236657 in words is "five billion, one hundred sixty-eight million, two hundred thirty-six thousand, six hundred fifty-seven".