380442647843 has 4 divisors (see below), whose sum is σ = 380443895568. Its totient is φ = 380441400120.

The previous prime is 380442647831. The next prime is 380442647857. The reversal of 380442647843 is 348746244083.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 348746244083 = 141907 ⋅2457569.

It is a cyclic number.

It is not a de Polignac number, because 380442647843 - 2¹⁸ = 380442385699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380442647813) 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, 171530 + ... + 888992.

It is an arithmetic number, because the mean of its divisors is an integer number (95110973892).

Almost surely, 2^380442647843 is an apocalyptic number.

380442647843 is a deficient number, since it is larger than the sum of its proper divisors (1247725).

380442647843 is an equidigital number, since it uses as much as digits as its factorization.

380442647843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247724.

The product of its (nonzero) digits is 12386304, while the sum is 53.

The spelling of 380442647843 in words is "three hundred eighty billion, four hundred forty-two million, six hundred forty-seven thousand, eight hundred forty-three".