388945043443 has 4 divisors (see below), whose sum is σ = 424303683768. Its totient is φ = 353586403120.

The previous prime is 388945043429. The next prime is 388945043453. The reversal of 388945043443 is 344340549883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344340549883 = 11 ⋅31303686353.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388945043443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388945043453) 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, 17679320146 + ... + 17679320167.

It is an arithmetic number, because the mean of its divisors is an integer number (106075920942).

Almost surely, 2^388945043443 is an apocalyptic number.

388945043443 is a deficient number, since it is larger than the sum of its proper divisors (35358640325).

388945043443 is a wasteful number, since it uses less digits than its factorization.

388945043443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35358640324.

The product of its (nonzero) digits is 19906560, while the sum is 55.

The spelling of 388945043443 in words is "three hundred eighty-eight billion, nine hundred forty-five million, forty-three thousand, four hundred forty-three".