381285000347 has 4 divisors (see below), whose sum is σ = 387747458040. Its totient is φ = 374822542656.

The previous prime is 381285000331. The next prime is 381285000377. The reversal of 381285000347 is 743000582183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381285000347 - 2⁴ = 381285000331 is a prime.

It is a super-2 number, since 2×381285000347² (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 (381285000377) 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, 3231228758 + ... + 3231228875.

It is an arithmetic number, because the mean of its divisors is an integer number (96936864510).

Almost surely, 2^381285000347 is an apocalyptic number.

381285000347 is a deficient number, since it is larger than the sum of its proper divisors (6462457693).

381285000347 is an equidigital number, since it uses as much as digits as its factorization.

381285000347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6462457692.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 381285000347 in words is "three hundred eighty-one billion, two hundred eighty-five million, three hundred forty-seven", and thus it is an aban number.