38648649039 has 48 divisors (see below), whose sum is σ = 69569420544. Its totient is φ = 18532800000.

The previous prime is 38648648953. The next prime is 38648649041. The reversal of 38648649039 is 93094684683.

It is not a de Polignac number, because 38648649039 - 2⁹ = 38648648527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38648649079) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 455962 + ... + 534039.

It is an arithmetic number, because the mean of its divisors is an integer number (1449362928).

Almost surely, 2^38648649039 is an apocalyptic number.

38648649039 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

38648649039 is a deficient number, since it is larger than the sum of its proper divisors (30920771505).

38648649039 is a wasteful number, since it uses less digits than its factorization.

38648649039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990048 (or 990035 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 38648649039 in words is "thirty-eight billion, six hundred forty-eight million, six hundred forty-nine thousand, thirty-nine".