380711581609 has 4 divisors (see below), whose sum is σ = 386952755140. Its totient is φ = 374470408080.

The previous prime is 380711581543. The next prime is 380711581637. The reversal of 380711581609 is 906185117083.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906185117083 = 38261 ⋅23684303.

It can be written as a sum of positive squares in 2 ways, for example, as 16855309584 + 363856272025 = 129828^2 + 603205^2 .

It is a cyclic number.

It is not a de Polignac number, because 380711581609 - 2²³ = 380703193001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380711581009) 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, 3120586674 + ... + 3120586795.

It is an arithmetic number, because the mean of its divisors is an integer number (96738188785).

Almost surely, 2^380711581609 is an apocalyptic number.

It is an amenable number.

380711581609 is a deficient number, since it is larger than the sum of its proper divisors (6241173531).

380711581609 is an equidigital number, since it uses as much as digits as its factorization.

380711581609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241173530.

The product of its (nonzero) digits is 362880, while the sum is 49.

The spelling of 380711581609 in words is "three hundred eighty billion, seven hundred eleven million, five hundred eighty-one thousand, six hundred nine".