38647426944 has 128 divisors (see below), whose sum is σ = 118808294400. Its totient is φ = 10902288384.

The previous prime is 38647426931. The next prime is 38647426963. The reversal of 38647426944 is 44962474683.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121354 + ... + 303350.

It is an arithmetic number, because the mean of its divisors is an integer number (928189800).

Almost surely, 2^38647426944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38647426944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59404147200).

38647426944 is an abundant number, since it is smaller than the sum of its proper divisors (80160867456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38647426944 is a wasteful number, since it uses less digits than its factorization.

38647426944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182100 (or 182088 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 57.

The spelling of 38647426944 in words is "thirty-eight billion, six hundred forty-seven million, four hundred twenty-six thousand, nine hundred forty-four".