381389303533 has 8 divisors (see below), whose sum is σ = 438131903168. Its totient is φ = 325211307264.

The previous prime is 381389303531. The next prime is 381389303539. The reversal of 381389303533 is 335303983183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381389303533 - 2¹ = 381389303531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381389303531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141149391 + ... + 141152092.

It is an arithmetic number, because the mean of its divisors is an integer number (54766487896).

Almost surely, 2^381389303533 is an apocalyptic number.

It is an amenable number.

381389303533 is a deficient number, since it is larger than the sum of its proper divisors (56742599635).

381389303533 is a wasteful number, since it uses less digits than its factorization.

381389303533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282301683.

The product of its (nonzero) digits is 2099520, while the sum is 49.

The spelling of 381389303533 in words is "three hundred eighty-one billion, three hundred eighty-nine million, three hundred three thousand, five hundred thirty-three".