5168168437 has 2 divisors, whose sum is σ = 5168168438. Its totient is φ = 5168168436.

The previous prime is 5168168429. The next prime is 5168168443. The reversal of 5168168437 is 7348618615.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4467719281 + 700449156 = 66841^2 + 26466^2 .

It is a cyclic number.

It is not a de Polignac number, because 5168168437 - 2³ = 5168168429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5168168417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2584084218 + 2584084219.

It is an arithmetic number, because the mean of its divisors is an integer number (2584084219).

Almost surely, 2^5168168437 is an apocalyptic number.

It is an amenable number.

5168168437 is a deficient number, since it is larger than the sum of its proper divisors (1).

5168168437 is an equidigital number, since it uses as much as digits as its factorization.

5168168437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 49.

The square root of 5168168437 is about 71889.9745235732. The cubic root of 5168168437 is about 1728.9358772730.

It can be divided in two parts, 51681684 and 37, that added together give a square (51681721 = 7189²).

The spelling of 5168168437 in words is "five billion, one hundred sixty-eight million, one hundred sixty-eight thousand, four hundred thirty-seven".