38817377231 has 2 divisors, whose sum is σ = 38817377232. Its totient is φ = 38817377230.

The previous prime is 38817377197. The next prime is 38817377299. The reversal of 38817377231 is 13277371883.

38817377231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (13277371883) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38817377231 is a prime.

It is a super-2 number, since 2×38817377231² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38817377231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38817377531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19408688615 + 19408688616.

It is an arithmetic number, because the mean of its divisors is an integer number (19408688616).

Almost surely, 2^38817377231 is an apocalyptic number.

38817377231 is a deficient number, since it is larger than the sum of its proper divisors (1).

38817377231 is an equidigital number, since it uses as much as digits as its factorization.

38817377231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 50.

The spelling of 38817377231 in words is "thirty-eight billion, eight hundred seventeen million, three hundred seventy-seven thousand, two hundred thirty-one".