380442647885 has 4 divisors (see below), whose sum is σ = 456531177468. Its totient is φ = 304354118304.

The previous prime is 380442647873. The next prime is 380442647951. The reversal of 380442647885 is 588746244083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588746244083 = 45319 ⋅12991157.

It can be written as a sum of positive squares in 2 ways, for example, as 105114717796 + 275327930089 = 324214^2 + 524717^2 .

It is a cyclic number.

It is not a de Polignac number, because 380442647885 - 2¹⁰ = 380442646861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 38044264784 + ... + 38044264793.

It is an arithmetic number, because the mean of its divisors is an integer number (114132794367).

Almost surely, 2^380442647885 is an apocalyptic number.

It is an amenable number.

380442647885 is a deficient number, since it is larger than the sum of its proper divisors (76088529583).

380442647885 is an equidigital number, since it uses as much as digits as its factorization.

380442647885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76088529582.

The product of its (nonzero) digits is 41287680, while the sum is 59.

The spelling of 380442647885 in words is "three hundred eighty billion, four hundred forty-two million, six hundred forty-seven thousand, eight hundred eighty-five".