6361235381 has 2 divisors, whose sum is σ = 6361235382. Its totient is φ = 6361235380.

The previous prime is 6361235369. The next prime is 6361235383. The reversal of 6361235381 is 1835321636.

6361235381 is digitally balanced in base 3, 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., 4909244356 + 1451991025 = 70066^2 + 38105^2 .

It is a cyclic number.

It is not a de Polignac number, because 6361235381 - 2¹⁰ = 6361234357 is a prime.

It is a super-2 number, since 2×6361235381² = 80930631144972430322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 6361235383, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6361235383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3180617690 + 3180617691.

It is an arithmetic number, because the mean of its divisors is an integer number (3180617691).

Almost surely, 2^6361235381 is an apocalyptic number.

It is an amenable number.

6361235381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6361235381 is an equidigital number, since it uses as much as digits as its factorization.

6361235381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 6361235381 is about 79757.3531469043. The cubic root of 6361235381 is about 1852.8794099894.

The spelling of 6361235381 in words is "six billion, three hundred sixty-one million, two hundred thirty-five thousand, three hundred eighty-one".