383379354473749 has 2 divisors, whose sum is σ = 383379354473750. Its totient is φ = 383379354473748.

The previous prime is 383379354473747. The next prime is 383379354473771. The reversal of 383379354473749 is 947374453973383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212264648183025 + 171114706290724 = 14569305^2 + 13081082^2 .

It is a cyclic number.

It is not a de Polignac number, because 383379354473749 - 2¹ = 383379354473747 is a prime.

Together with 383379354473747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383379354473747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191689677236874 + 191689677236875.

It is an arithmetic number, because the mean of its divisors is an integer number (191689677236875).

Almost surely, 2^{383379354473749} is an apocalyptic number.

It is an amenable number.

383379354473749 is a deficient number, since it is larger than the sum of its proper divisors (1).

383379354473749 is an equidigital number, since it uses as much as digits as its factorization.

383379354473749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17283248640, while the sum is 79.

The spelling of 383379354473749 in words is "three hundred eighty-three trillion, three hundred seventy-nine billion, three hundred fifty-four million, four hundred seventy-three thousand, seven hundred forty-nine".