380163378365 has 4 divisors (see below), whose sum is σ = 456196054044. Its totient is φ = 304130702688.

The previous prime is 380163378349. The next prime is 380163378367. The reversal of 380163378365 is 563873361083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563873361083 = 328331 ⋅1717393.

It can be written as a sum of positive squares in 2 ways, for example, as 92838433636 + 287324944729 = 304694^2 + 536027^2 .

It is a cyclic number.

It is not a de Polignac number, because 380163378365 - 2⁴ = 380163378349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380163378367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38016337832 + ... + 38016337841.

It is an arithmetic number, because the mean of its divisors is an integer number (114049013511).

Almost surely, 2^380163378365 is an apocalyptic number.

It is an amenable number.

380163378365 is a deficient number, since it is larger than the sum of its proper divisors (76032675679).

380163378365 is an equidigital number, since it uses as much as digits as its factorization.

380163378365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76032675678.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 380163378365 in words is "three hundred eighty billion, one hundred sixty-three million, three hundred seventy-eight thousand, three hundred sixty-five".