38403883866937 has 2 divisors, whose sum is σ = 38403883866938. Its totient is φ = 38403883866936.

The previous prime is 38403883866893. The next prime is 38403883866947. The reversal of 38403883866937 is 73966838830483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20237500929321 + 18166382937616 = 4498611^2 + 4262204^2 .

It is a cyclic number.

It is not a de Polignac number, because 38403883866937 - 2¹¹ = 38403883864889 is a prime.

It is not a weakly prime, because it can be changed into another prime (38403883866947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19201941933468 + 19201941933469.

It is an arithmetic number, because the mean of its divisors is an integer number (19201941933469).

Almost surely, 2^{38403883866937} is an apocalyptic number.

It is an amenable number.

38403883866937 is a deficient number, since it is larger than the sum of its proper divisors (1).

38403883866937 is an equidigital number, since it uses as much as digits as its factorization.

38403883866937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3009871872, while the sum is 76.

The spelling of 38403883866937 in words is "thirty-eight trillion, four hundred three billion, eight hundred eighty-three million, eight hundred sixty-six thousand, nine hundred thirty-seven".