380273255569 has 9 divisors (see below), whose sum is σ = 389349633339. Its totient is φ = 371403791640.

The previous prime is 380273255539. The next prime is 380273255633. The reversal of 380273255569 is 965552372083.

It is a happy number.

The square root of 380273255569 is 616663.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6389923969 + 373883331600 = 79937^2 + 611460^2 .

It is not a de Polignac number, because 380273255569 - 2⁹ = 380273255057 is a prime.

It is a super-2 number, since 2×380273255569² (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 (380273255539) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26509339 + ... + 26523679.

It is an arithmetic number, because the mean of its divisors is an integer number (43261070371).

Almost surely, 2^380273255569 is an apocalyptic number.

380273255569 is the 616663-rd square number.

380273255569 is the 308332-nd centered octagonal number.

It is an amenable number.

380273255569 is a deficient number, since it is larger than the sum of its proper divisors (9076377770).

380273255569 is an frugal number, since it uses more digits than its factorization.

380273255569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28768 (or 14384 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 380273255569 in words is "three hundred eighty billion, two hundred seventy-three million, two hundred fifty-five thousand, five hundred sixty-nine".