383921428823 has 2 divisors, whose sum is σ = 383921428824. Its totient is φ = 383921428822.

The previous prime is 383921428817. The next prime is 383921428861. The reversal of 383921428823 is 328824129383.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 383921428823 - 2²⁰ = 383920380247 is a prime.

It is a super-3 number, since 3×383921428823³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383921428883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191960714411 + 191960714412.

It is an arithmetic number, because the mean of its divisors is an integer number (191960714412).

Almost surely, 2^383921428823 is an apocalyptic number.

383921428823 is a deficient number, since it is larger than the sum of its proper divisors (1).

383921428823 is an equidigital number, since it uses as much as digits as its factorization.

383921428823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 53.

The spelling of 383921428823 in words is "three hundred eighty-three billion, nine hundred twenty-one million, four hundred twenty-eight thousand, eight hundred twenty-three".