2637042157 has 2 divisors, whose sum is σ = 2637042158. Its totient is φ = 2637042156.

The previous prime is 2637042151. The next prime is 2637042173. The reversal of 2637042157 is 7512407362.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1352106441 + 1284935716 = 36771^2 + 35846^2 .

It is a cyclic number.

It is not a de Polignac number, because 2637042157 - 2¹⁹ = 2636517869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2637042151) 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, 1318521078 + 1318521079.

It is an arithmetic number, because the mean of its divisors is an integer number (1318521079).

Almost surely, 2^2637042157 is an apocalyptic number.

It is an amenable number.

2637042157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2637042157 is an equidigital number, since it uses as much as digits as its factorization.

2637042157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 2637042157 is about 51352.1387772700. The cubic root of 2637042157 is about 1381.5682928371.

The spelling of 2637042157 in words is "two billion, six hundred thirty-seven million, forty-two thousand, one hundred fifty-seven".