38118651648 has 144 divisors (see below), whose sum is σ = 126484813056. Its totient is φ = 9900933120.

The previous prime is 38118651611. The next prime is 38118651719. The reversal of 38118651648 is 84615681183.

It is a self number, because there is not a number n which added to its sum of digits gives 38118651648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263161 + ... + 381432.

Almost surely, 2^38118651648 is an apocalyptic number.

It is an amenable number.

38118651648 is an abundant number, since it is smaller than the sum of its proper divisors (88366161408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38118651648 is a wasteful number, since it uses less digits than its factorization.

38118651648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644630 (or 644616 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 51.

The spelling of 38118651648 in words is "thirty-eight billion, one hundred eighteen million, six hundred fifty-one thousand, six hundred forty-eight".