38631013136 has 10 divisors (see below), whose sum is σ = 74847587982. Its totient is φ = 19315506560.

The previous prime is 38631013121. The next prime is 38631013139. The reversal of 38631013136 is 63131013683.

It can be written as a sum of positive squares in only one way, i.e., 38627971600 + 3041536 = 196540^2 + 1744^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38631013096 and 38631013105.

It is not an unprimeable number, because it can be changed into a prime (38631013139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1207219145 + ... + 1207219176.

Almost surely, 2^38631013136 is an apocalyptic number.

It is an amenable number.

38631013136 is a deficient number, since it is larger than the sum of its proper divisors (36216574846).

38631013136 is a wasteful number, since it uses less digits than its factorization.

38631013136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414438329 (or 2414438323 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 38631013136 in words is "thirty-eight billion, six hundred thirty-one million, thirteen thousand, one hundred thirty-six".