921442495383 has 16 divisors (see below), whose sum is σ = 1365160131040. Its totient is φ = 614267934912.

The previous prime is 921442495361. The next prime is 921442495397. The reversal of 921442495383 is 383594244129.

It is a happy number.

921442495383 is a `hidden beast` number, since 9 + 2 + 14 + 4 + 249 + 5 + 383 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-921442495383 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 (921442495333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117766 + ... + 1362627.

It is an arithmetic number, because the mean of its divisors is an integer number (85322508190).

Almost surely, 2^921442495383 is an apocalyptic number.

921442495383 is a deficient number, since it is larger than the sum of its proper divisors (443717635657).

921442495383 is a wasteful number, since it uses less digits than its factorization.

921442495383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503455 (or 1503449 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 921442495383 in words is "nine hundred twenty-one billion, four hundred forty-two million, four hundred ninety-five thousand, three hundred eighty-three".