380161812845 has 8 divisors (see below), whose sum is σ = 460710950040. Its totient is φ = 301118267200.

The previous prime is 380161812839. The next prime is 380161812881. The reversal of 380161812845 is 548218161083.

It can be written as a sum of positive squares in 4 ways, for example, as 231205182244 + 148956630601 = 480838^2 + 385949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 380161812845 - 2⁶ = 380161812781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 380161812845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376397330 + ... + 376398339.

It is an arithmetic number, because the mean of its divisors is an integer number (57588868755).

Almost surely, 2^380161812845 is an apocalyptic number.

It is an amenable number.

380161812845 is a deficient number, since it is larger than the sum of its proper divisors (80549137195).

380161812845 is a wasteful number, since it uses less digits than its factorization.

380161812845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752795775.

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 380161812845 in words is "three hundred eighty billion, one hundred sixty-one million, eight hundred twelve thousand, eight hundred forty-five".