38781922636 has 6 divisors (see below), whose sum is σ = 67868364620. Its totient is φ = 19390961316.

The previous prime is 38781922631. The next prime is 38781922643. The reversal of 38781922636 is 63622918783.

It is not an unprimeable number, because it can be changed into a prime (38781922631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4847740326 + ... + 4847740333.

Almost surely, 2^38781922636 is an apocalyptic number.

It is an amenable number.

38781922636 is a deficient number, since it is larger than the sum of its proper divisors (29086441984).

38781922636 is a wasteful number, since it uses less digits than its factorization.

38781922636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9695480663 (or 9695480661 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The spelling of 38781922636 in words is "thirty-eight billion, seven hundred eighty-one million, nine hundred twenty-two thousand, six hundred thirty-six".