38305165728 has 48 divisors (see below), whose sum is σ = 102448263456. Its totient is φ = 12527473920.

The previous prime is 38305165709. The next prime is 38305165729. The reversal of 38305165728 is 82756150383.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (38305165729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3759178 + ... + 3769353.

It is an arithmetic number, because the mean of its divisors is an integer number (2134338822).

Almost surely, 2^38305165728 is an apocalyptic number.

It is an amenable number.

38305165728 is an abundant number, since it is smaller than the sum of its proper divisors (64143097728).

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

38305165728 is a wasteful number, since it uses less digits than its factorization.

38305165728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7528597 (or 7528589 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 38305165728 in words is "thirty-eight billion, three hundred five million, one hundred sixty-five thousand, seven hundred twenty-eight".