38388400440007 has 4 divisors (see below), whose sum is σ = 38397630643840. Its totient is φ = 38379170236176.

The previous prime is 38388400439989. The next prime is 38388400440011. The reversal of 38388400440007 is 70004400488383.

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

It is a cyclic number.

It is not a de Polignac number, because 38388400440007 - 2¹⁵ = 38388400407239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38388400440017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4615095678 + ... + 4615103995.

It is an arithmetic number, because the mean of its divisors is an integer number (9599407660960).

Almost surely, 2^{38388400440007} is an apocalyptic number.

38388400440007 is a deficient number, since it is larger than the sum of its proper divisors (9230203833).

38388400440007 is an equidigital number, since it uses as much as digits as its factorization.

38388400440007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9230203832.

The product of its (nonzero) digits is 2064384, while the sum is 49.

The spelling of 38388400440007 in words is "thirty-eight trillion, three hundred eighty-eight billion, four hundred million, four hundred forty thousand, seven".