381434546303999 has 4 divisors (see below), whose sum is σ = 381615064311936. Its totient is φ = 381254028296064.

The previous prime is 381434546303981. The next prime is 381434546304151. The reversal of 381434546303999 is 999303645434183.

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 381434546303999 - 2⁸ = 381434546303743 is a prime.

It is a super-3 number, since 3×381434546303999³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381434546303959) 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, 90259000799 + ... + 90259005024.

It is an arithmetic number, because the mean of its divisors is an integer number (95403766077984).

Almost surely, 2^{381434546303999} is an apocalyptic number.

381434546303999 is a deficient number, since it is larger than the sum of its proper divisors (180518007937).

381434546303999 is a wasteful number, since it uses less digits than its factorization.

381434546303999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180518007936.

The product of its (nonzero) digits is 906992640, while the sum is 71.

The spelling of 381434546303999 in words is "three hundred eighty-one trillion, four hundred thirty-four billion, five hundred forty-six million, three hundred three thousand, nine hundred ninety-nine".