38721409750 has 64 divisors (see below), whose sum is σ = 73024750656. Its totient is φ = 15374016000.

The previous prime is 38721409703. The next prime is 38721409757. The reversal of 38721409750 is 5790412783.

It is a self number, because there is not a number n which added to its sum of digits gives 38721409750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38721409757) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 22472389 + ... + 22474111.

It is an arithmetic number, because the mean of its divisors is an integer number (1141011729).

Almost surely, 2^38721409750 is an apocalyptic number.

38721409750 is a deficient number, since it is larger than the sum of its proper divisors (34303340906).

38721409750 is a wasteful number, since it uses less digits than its factorization.

38721409750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354 (or 2344 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 38721409750 in words is "thirty-eight billion, seven hundred twenty-one million, four hundred nine thousand, seven hundred fifty".