38631470386 has 4 divisors (see below), whose sum is σ = 57947205582. Its totient is φ = 19315735192.

The previous prime is 38631470359. The next prime is 38631470389. The reversal of 38631470386 is 68307413683.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68307413683 = 719 ⋅95003357.

It can be written as a sum of positive squares in only one way, i.e., 31552772161 + 7078698225 = 177631^2 + 84135^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (38631470389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9657867595 + ... + 9657867598.

Almost surely, 2^38631470386 is an apocalyptic number.

38631470386 is a deficient number, since it is larger than the sum of its proper divisors (19315735196).

38631470386 is a wasteful number, since it uses less digits than its factorization.

38631470386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19315735195.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 38631470386 in words is "thirty-eight billion, six hundred thirty-one million, four hundred seventy thousand, three hundred eighty-six".