383643699953 has 16 divisors (see below), whose sum is σ = 388664122176. Its totient is φ = 378662921280.

The previous prime is 383643699947. The next prime is 383643700009. The reversal of 383643699953 is 359996346383.

It is a cyclic number.

It is not a de Polignac number, because 383643699953 - 2¹⁴ = 383643683569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383643699553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18067883 + ... + 18089103.

It is an arithmetic number, because the mean of its divisors is an integer number (24291507636).

Almost surely, 2^383643699953 is an apocalyptic number.

It is an amenable number.

383643699953 is a deficient number, since it is larger than the sum of its proper divisors (5020422223).

383643699953 is a wasteful number, since it uses less digits than its factorization.

383643699953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22144.

The product of its digits is 340122240, while the sum is 68.

The spelling of 383643699953 in words is "three hundred eighty-three billion, six hundred forty-three million, six hundred ninety-nine thousand, nine hundred fifty-three".