38358686040521 has 32 divisors (see below), whose sum is σ = 50410105374720. Its totient is φ = 28277782473600.

The previous prime is 38358686040497. The next prime is 38358686040529. The reversal of 38358686040521 is 12504068685383.

It is not a de Polignac number, because 38358686040521 - 2²² = 38358681846217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38358686040529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16968860 + ... + 19096061.

It is an arithmetic number, because the mean of its divisors is an integer number (1575315792960).

Almost surely, 2^{38358686040521} is an apocalyptic number.

It is an amenable number.

38358686040521 is a deficient number, since it is larger than the sum of its proper divisors (12051419334199).

38358686040521 is a wasteful number, since it uses less digits than its factorization.

38358686040521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36065685.

The product of its (nonzero) digits is 33177600, while the sum is 59.

The spelling of 38358686040521 in words is "thirty-eight trillion, three hundred fifty-eight billion, six hundred eighty-six million, forty thousand, five hundred twenty-one".