38662069728 has 48 divisors (see below), whose sum is σ = 101498503680. Its totient is φ = 12886014336.

The previous prime is 38662069723. The next prime is 38662069741. The reversal of 38662069728 is 82796026683.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38662069723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414851 + ... + 1441917.

It is an arithmetic number, because the mean of its divisors is an integer number (2114552160).

Almost surely, 2^38662069728 is an apocalyptic number.

It is an amenable number.

38662069728 is an abundant number, since it is smaller than the sum of its proper divisors (62836433952).

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

38662069728 is a wasteful number, since it uses less digits than its factorization.

38662069728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41959 (or 41951 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 38662069728 in words is "thirty-eight billion, six hundred sixty-two million, sixty-nine thousand, seven hundred twenty-eight".