38766872257 has 2 divisors, whose sum is σ = 38766872258. Its totient is φ = 38766872256.

The previous prime is 38766872099. The next prime is 38766872279. The reversal of 38766872257 is 75227866783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38592209601 + 174662656 = 196449^2 + 13216^2 .

It is a cyclic number.

It is not a de Polignac number, because 38766872257 - 2¹⁹ = 38766347969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38766872195 and 38766872204.

It is not a weakly prime, because it can be changed into another prime (38766872057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19383436128 + 19383436129.

It is an arithmetic number, because the mean of its divisors is an integer number (19383436129).

Almost surely, 2^38766872257 is an apocalyptic number.

It is an amenable number.

38766872257 is a deficient number, since it is larger than the sum of its proper divisors (1).

38766872257 is an equidigital number, since it uses as much as digits as its factorization.

38766872257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47416320, while the sum is 61.

The spelling of 38766872257 in words is "thirty-eight billion, seven hundred sixty-six million, eight hundred seventy-two thousand, two hundred fifty-seven".