38407135536181 has 2 divisors, whose sum is σ = 38407135536182. Its totient is φ = 38407135536180.

The previous prime is 38407135536157. The next prime is 38407135536191. The reversal of 38407135536181 is 18163553170483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20646254754225 + 17760880781956 = 4543815^2 + 4214366^2 .

It is a cyclic number.

It is not a de Polignac number, because 38407135536181 - 2⁷ = 38407135536053 is a prime.

It is a super-2 number, since 2×38407135536181² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38407135536191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19203567768090 + 19203567768091.

It is an arithmetic number, because the mean of its divisors is an integer number (19203567768091).

Almost surely, 2^{38407135536181} is an apocalyptic number.

It is an amenable number.

38407135536181 is a deficient number, since it is larger than the sum of its proper divisors (1).

38407135536181 is an equidigital number, since it uses as much as digits as its factorization.

38407135536181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 38407135536181 in words is "thirty-eight trillion, four hundred seven billion, one hundred thirty-five million, five hundred thirty-six thousand, one hundred eighty-one".