38923503847 has 4 divisors (see below), whose sum is σ = 39561594136. Its totient is φ = 38285413560.

The previous prime is 38923503833. The next prime is 38923503901. The reversal of 38923503847 is 74830532983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38923503847 - 2¹⁹ = 38922979559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38923503794 and 38923503803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38923501847) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 319045053 + ... + 319045174.

It is an arithmetic number, because the mean of its divisors is an integer number (9890398534).

Almost surely, 2^38923503847 is an apocalyptic number.

38923503847 is a deficient number, since it is larger than the sum of its proper divisors (638090289).

38923503847 is an equidigital number, since it uses as much as digits as its factorization.

38923503847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638090288.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 38923503847 in words is "thirty-eight billion, nine hundred twenty-three million, five hundred three thousand, eight hundred forty-seven".