38648648939 has 2 divisors, whose sum is σ = 38648648940. Its totient is φ = 38648648938.

The previous prime is 38648648887. The next prime is 38648648953. The reversal of 38648648939 is 93984684683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38648648939 - 2¹⁶ = 38648583403 is a prime.

It is not a weakly prime, because it can be changed into another prime (38648645939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19324324469 + 19324324470.

It is an arithmetic number, because the mean of its divisors is an integer number (19324324470).

Almost surely, 2^38648648939 is an apocalyptic number.

38648648939 is a deficient number, since it is larger than the sum of its proper divisors (1).

38648648939 is an equidigital number, since it uses as much as digits as its factorization.

38648648939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214990848, while the sum is 68.

The spelling of 38648648939 in words is "thirty-eight billion, six hundred forty-eight million, six hundred forty-eight thousand, nine hundred thirty-nine".