38638863787307 has 16 divisors (see below), whose sum is σ = 45242311306752. Its totient is φ = 32315936567040.

The previous prime is 38638863787291. The next prime is 38638863787309. The reversal of 38638863787307 is 70378736883683.

It is not a de Polignac number, because 38638863787307 - 2⁴ = 38638863787291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38638863787309) 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 15 ways as a sum of consecutive naturals, for example, 400695053 + ... + 400791470.

It is an arithmetic number, because the mean of its divisors is an integer number (2827644456672).

Almost surely, 2^{38638863787307} is an apocalyptic number.

38638863787307 is a deficient number, since it is larger than the sum of its proper divisors (6603447519445).

38638863787307 is an equidigital number, since it uses as much as digits as its factorization.

38638863787307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801486698.

The product of its (nonzero) digits is 4096770048, while the sum is 77.

The spelling of 38638863787307 in words is "thirty-eight trillion, six hundred thirty-eight billion, eight hundred sixty-three million, seven hundred eighty-seven thousand, three hundred seven".