38363506261 has 2 divisors, whose sum is σ = 38363506262. Its totient is φ = 38363506260.

The previous prime is 38363506253. The next prime is 38363506267. The reversal of 38363506261 is 16260536383.

38363506261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25163794161 + 13199712100 = 158631^2 + 114890^2 .

It is a cyclic number.

It is not a de Polignac number, because 38363506261 - 2³ = 38363506253 is a prime.

It is a super-2 number, since 2×38363506261² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38363506267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19181753130 + 19181753131.

It is an arithmetic number, because the mean of its divisors is an integer number (19181753131).

Almost surely, 2^38363506261 is an apocalyptic number.

It is an amenable number.

38363506261 is a deficient number, since it is larger than the sum of its proper divisors (1).

38363506261 is an equidigital number, since it uses as much as digits as its factorization.

38363506261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 38363506261 in words is "thirty-eight billion, three hundred sixty-three million, five hundred six thousand, two hundred sixty-one".