38145778768 has 40 divisors (see below), whose sum is σ = 76622345856. Its totient is φ = 18383481600.

The previous prime is 38145778753. The next prime is 38145778843. The reversal of 38145778768 is 86787754183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295848 + ... + 404743.

Almost surely, 2^38145778768 is an apocalyptic number.

It is an amenable number.

38145778768 is an abundant number, since it is smaller than the sum of its proper divisors (38476567088).

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

38145778768 is a wasteful number, since it uses less digits than its factorization.

38145778768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700723 (or 700717 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 64.

The spelling of 38145778768 in words is "thirty-eight billion, one hundred forty-five million, seven hundred seventy-eight thousand, seven hundred sixty-eight".