38278467728 has 10 divisors (see below), whose sum is σ = 74164531254. Its totient is φ = 19139233856.

The previous prime is 38278467713. The next prime is 38278467757. The reversal of 38278467728 is 82776487283.

It can be written as a sum of positive squares in only one way, i.e., 24521054464 + 13757413264 = 156592^2 + 117292^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1196202101 + ... + 1196202132.

Almost surely, 2^38278467728 is an apocalyptic number.

It is an amenable number.

38278467728 is a deficient number, since it is larger than the sum of its proper divisors (35886063526).

38278467728 is a wasteful number, since it uses less digits than its factorization.

38278467728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392404241 (or 2392404235 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 62.

The spelling of 38278467728 in words is "thirty-eight billion, two hundred seventy-eight million, four hundred sixty-seven thousand, seven hundred twenty-eight".