38345638710391 has 4 divisors (see below), whose sum is σ = 38346599769784. Its totient is φ = 38344677651000.

The previous prime is 38345638710343. The next prime is 38345638710433. The reversal of 38345638710391 is 19301783654383.

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 38345638710391 - 2⁷ = 38345638710263 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 (38345698710391) 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 3 ways as a sum of consecutive naturals, for example, 480469845 + ... + 480549646.

It is an arithmetic number, because the mean of its divisors is an integer number (9586649942446).

Almost surely, 2^{38345638710391} is an apocalyptic number.

38345638710391 is a deficient number, since it is larger than the sum of its proper divisors (961059393).

38345638710391 is an equidigital number, since it uses as much as digits as its factorization.

38345638710391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961059392.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 38345638710391 in words is "thirty-eight trillion, three hundred forty-five billion, six hundred thirty-eight million, seven hundred ten thousand, three hundred ninety-one".