38378586673 has 4 divisors (see below), whose sum is σ = 43861241920. Its totient is φ = 32895931428.

The previous prime is 38378586667. The next prime is 38378586679. The reversal of 38378586673 is 37668587383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37668587383 = 7 ⋅5381226769.

It is an interprime number because it is at equal distance from previous prime (38378586667) and next prime (38378586679).

It is a cyclic number.

It is not a de Polignac number, because 38378586673 - 2²⁵ = 38345032241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38378586679) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2741327613 + ... + 2741327626.

It is an arithmetic number, because the mean of its divisors is an integer number (10965310480).

Almost surely, 2^38378586673 is an apocalyptic number.

It is an amenable number.

38378586673 is a deficient number, since it is larger than the sum of its proper divisors (5482655247).

38378586673 is an equidigital number, since it uses as much as digits as its factorization.

38378586673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482655246.

The product of its digits is 121927680, while the sum is 64.

The spelling of 38378586673 in words is "thirty-eight billion, three hundred seventy-eight million, five hundred eighty-six thousand, six hundred seventy-three".