38780003161 has 2 divisors, whose sum is σ = 38780003162. Its totient is φ = 38780003160.

The previous prime is 38780003137. The next prime is 38780003173. The reversal of 38780003161 is 16130008783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38101088025 + 678915136 = 195195^2 + 26056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38780003161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38780003161.

It is not a weakly prime, because it can be changed into another prime (38780003111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19390001580 + 19390001581.

It is an arithmetic number, because the mean of its divisors is an integer number (19390001581).

Almost surely, 2^38780003161 is an apocalyptic number.

It is an amenable number.

38780003161 is a deficient number, since it is larger than the sum of its proper divisors (1).

38780003161 is an equidigital number, since it uses as much as digits as its factorization.

38780003161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 38780003161 in words is "thirty-eight billion, seven hundred eighty million, three thousand, one hundred sixty-one".