38181350177 has 2 divisors, whose sum is σ = 38181350178. Its totient is φ = 38181350176.

The previous prime is 38181350173. The next prime is 38181350197. The reversal of 38181350177 is 77105318183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22500300001 + 15681050176 = 150001^2 + 125224^2 .

It is a cyclic number.

It is not a de Polignac number, because 38181350177 - 2² = 38181350173 is a prime.

It is not a weakly prime, because it can be changed into another prime (38181350173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19090675088 + 19090675089.

It is an arithmetic number, because the mean of its divisors is an integer number (19090675089).

Almost surely, 2^38181350177 is an apocalyptic number.

It is an amenable number.

38181350177 is a deficient number, since it is larger than the sum of its proper divisors (1).

38181350177 is an equidigital number, since it uses as much as digits as its factorization.

38181350177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 38181350177 in words is "thirty-eight billion, one hundred eighty-one million, three hundred fifty thousand, one hundred seventy-seven".