38747120426787 has 4 divisors (see below), whose sum is σ = 51662827235720. Its totient is φ = 25831413617856.

The previous prime is 38747120426783. The next prime is 38747120426843. The reversal of 38747120426787 is 78762402174783.

38747120426787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38747120426787 - 2² = 38747120426783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38747120426783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6457853404462 + ... + 6457853404467.

It is an arithmetic number, because the mean of its divisors is an integer number (12915706808930).

Almost surely, 2^{38747120426787} is an apocalyptic number.

38747120426787 is a deficient number, since it is larger than the sum of its proper divisors (12915706808933).

38747120426787 is a wasteful number, since it uses less digits than its factorization.

38747120426787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12915706808932.

The product of its (nonzero) digits is 177020928, while the sum is 66.

The spelling of 38747120426787 in words is "thirty-eight trillion, seven hundred forty-seven billion, one hundred twenty million, four hundred twenty-six thousand, seven hundred eighty-seven".