5642319157 has 2 divisors, whose sum is σ = 5642319158. Its totient is φ = 5642319156.

The previous prime is 5642319149. The next prime is 5642319161. The reversal of 5642319157 is 7519132465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4450757796 + 1191561361 = 66714^2 + 34519^2 .

It is a cyclic number.

It is not a de Polignac number, because 5642319157 - 2³ = 5642319149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5642319127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821159578 + 2821159579.

It is an arithmetic number, because the mean of its divisors is an integer number (2821159579).

Almost surely, 2^5642319157 is an apocalyptic number.

It is an amenable number.

5642319157 is a deficient number, since it is larger than the sum of its proper divisors (1).

5642319157 is an equidigital number, since it uses as much as digits as its factorization.

5642319157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 43.

The square root of 5642319157 is about 75115.3723082033. The cubic root of 5642319157 is about 1780.2700382511.

The spelling of 5642319157 in words is "five billion, six hundred forty-two million, three hundred nineteen thousand, one hundred fifty-seven".