38648394953 has 4 divisors (see below), whose sum is σ = 44169594240. Its totient is φ = 33127195668.

The previous prime is 38648394923. The next prime is 38648395043. The reversal of 38648394953 is 35949384683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38648394953 - 2²⁴ = 38631617737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38648394913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2760599633 + ... + 2760599646.

It is an arithmetic number, because the mean of its divisors is an integer number (11042398560).

Almost surely, 2^38648394953 is an apocalyptic number.

It is an amenable number.

38648394953 is a deficient number, since it is larger than the sum of its proper divisors (5521199287).

38648394953 is an equidigital number, since it uses as much as digits as its factorization.

38648394953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521199286.

The product of its digits is 67184640, while the sum is 62.

The spelling of 38648394953 in words is "thirty-eight billion, six hundred forty-eight million, three hundred ninety-four thousand, nine hundred fifty-three".