38945662438 has 4 divisors (see below), whose sum is σ = 58418493660. Its totient is φ = 19472831218.

The previous prime is 38945662429. The next prime is 38945662439. The reversal of 38945662438 is 83426654983.

38945662438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38945662439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9736415608 + ... + 9736415611.

It is an arithmetic number, because the mean of its divisors is an integer number (14604623415).

Almost surely, 2^38945662438 is an apocalyptic number.

38945662438 is a deficient number, since it is larger than the sum of its proper divisors (19472831222).

38945662438 is a wasteful number, since it uses less digits than its factorization.

38945662438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19472831221.

The product of its digits is 29859840, while the sum is 58.

The spelling of 38945662438 in words is "thirty-eight billion, nine hundred forty-five million, six hundred sixty-two thousand, four hundred thirty-eight".