8318772037 has 2 divisors, whose sum is σ = 8318772038. Its totient is φ = 8318772036.

The previous prime is 8318771987. The next prime is 8318772041. The reversal of 8318772037 is 7302778138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5199996321 + 3118775716 = 72111^2 + 55846^2 .

It is a cyclic number.

It is not a de Polignac number, because 8318772037 - 2¹⁵ = 8318739269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8318772067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4159386018 + 4159386019.

It is an arithmetic number, because the mean of its divisors is an integer number (4159386019).

Almost surely, 2^8318772037 is an apocalyptic number.

It is an amenable number.

8318772037 is a deficient number, since it is larger than the sum of its proper divisors (1).

8318772037 is an equidigital number, since it uses as much as digits as its factorization.

8318772037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 8318772037 is about 91207.3025420662. The cubic root of 8318772037 is about 2026.2191134518.

The spelling of 8318772037 in words is "eight billion, three hundred eighteen million, seven hundred seventy-two thousand, thirty-seven".