381761638467283 has 2 divisors, whose sum is σ = 381761638467284. Its totient is φ = 381761638467282.

The previous prime is 381761638467281. The next prime is 381761638467329. The reversal of 381761638467283 is 382764836167183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381761638467283 - 2¹ = 381761638467281 is a prime.

It is a super-2 number, since 2×381761638467283² (a number of 30 digits) contains 22 as substring.

Together with 381761638467281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (381761638467281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190880819233641 + 190880819233642.

It is an arithmetic number, because the mean of its divisors is an integer number (190880819233642).

Almost surely, 2^{381761638467283} is an apocalyptic number.

381761638467283 is a deficient number, since it is larger than the sum of its proper divisors (1).

381761638467283 is an equidigital number, since it uses as much as digits as its factorization.

381761638467283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1170505728, while the sum is 73.

The spelling of 381761638467283 in words is "three hundred eighty-one trillion, seven hundred sixty-one billion, six hundred thirty-eight million, four hundred sixty-seven thousand, two hundred eighty-three".