6281291350361 has 2 divisors, whose sum is σ = 6281291350362. Its totient is φ = 6281291350360.

The previous prime is 6281291350351. The next prime is 6281291350363. The reversal of 6281291350361 is 1630531921826.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3721739330761 + 2559552019600 = 1929181^2 + 1599860^2 .

It is a cyclic number.

It is not a de Polignac number, because 6281291350361 - 2⁶ = 6281291350297 is a prime.

Together with 6281291350363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6281291350363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3140645675180 + 3140645675181.

It is an arithmetic number, because the mean of its divisors is an integer number (3140645675181).

Almost surely, 2^{6281291350361} is an apocalyptic number.

It is an amenable number.

6281291350361 is a deficient number, since it is larger than the sum of its proper divisors (1).

6281291350361 is an equidigital number, since it uses as much as digits as its factorization.

6281291350361 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 47.

The spelling of 6281291350361 in words is "six trillion, two hundred eighty-one billion, two hundred ninety-one million, three hundred fifty thousand, three hundred sixty-one".