382883361991 has 4 divisors (see below), whose sum is σ = 412335928312. Its totient is φ = 353430795672.

The previous prime is 382883361919. The next prime is 382883362007. The reversal of 382883361991 is 199163388283.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-382883361991 is a prime.

It is a super-2 number, since 2×382883361991² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382883364991) 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, 14726283141 + ... + 14726283166.

It is an arithmetic number, because the mean of its divisors is an integer number (103083982078).

Almost surely, 2^382883361991 is an apocalyptic number.

382883361991 is a deficient number, since it is larger than the sum of its proper divisors (29452566321).

382883361991 is a wasteful number, since it uses less digits than its factorization.

382883361991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29452566320.

The product of its digits is 13436928, while the sum is 61.

The spelling of 382883361991 in words is "three hundred eighty-two billion, eight hundred eighty-three million, three hundred sixty-one thousand, nine hundred ninety-one".