380305715329 has 4 divisors (see below), whose sum is σ = 382728044884. Its totient is φ = 377883385776.

The previous prime is 380305715243. The next prime is 380305715341. The reversal of 380305715329 is 923517503083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 923517503083 = 7 ⋅131931071869.

It can be written as a sum of positive squares in 2 ways, for example, as 158365794304 + 221939921025 = 397952^2 + 471105^2 .

It is a cyclic number.

It is not a de Polignac number, because 380305715329 - 2¹⁹ = 380305191041 is a prime.

It is a super-2 number, since 2×380305715329² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380305715359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211164542 + ... + 1211164855.

It is an arithmetic number, because the mean of its divisors is an integer number (95682011221).

Almost surely, 2^380305715329 is an apocalyptic number.

It is an amenable number.

380305715329 is a deficient number, since it is larger than the sum of its proper divisors (2422329555).

380305715329 is a wasteful number, since it uses less digits than its factorization.

380305715329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422329554.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 380305715329 in words is "three hundred eighty billion, three hundred five million, seven hundred fifteen thousand, three hundred twenty-nine".