38717252188640 has 48 divisors (see below), whose sum is σ = 91617757327152. Its totient is φ = 15461800510464.

The previous prime is 38717252188577. The next prime is 38717252188663. The reversal of 38717252188640 is 4688125271783.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195997574 + ... + 196195013.

It is an arithmetic number, because the mean of its divisors is an integer number (1908703277649).

Almost surely, 2^{38717252188640} is an apocalyptic number.

It is an amenable number.

38717252188640 is an abundant number, since it is smaller than the sum of its proper divisors (52900505138512).

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

38717252188640 is a wasteful number, since it uses less digits than its factorization.

38717252188640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392193219 (or 392193211 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 62.

The spelling of 38717252188640 in words is "thirty-eight trillion, seven hundred seventeen billion, two hundred fifty-two million, one hundred eighty-eight thousand, six hundred forty".