38243995705 has 4 divisors (see below), whose sum is σ = 45892794852. Its totient is φ = 30595196560.

The previous prime is 38243995679. The next prime is 38243995721. The reversal of 38243995705 is 50759934283.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6537207609 + 31706788096 = 80853^2 + 178064^2 .

It is not a de Polignac number, because 38243995705 - 2⁹ = 38243995193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3824399566 + ... + 3824399575.

It is an arithmetic number, because the mean of its divisors is an integer number (11473198713).

Almost surely, 2^38243995705 is an apocalyptic number.

It is an amenable number.

38243995705 is a deficient number, since it is larger than the sum of its proper divisors (7648799147).

38243995705 is an equidigital number, since it uses as much as digits as its factorization.

38243995705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7648799146.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 38243995705 in words is "thirty-eight billion, two hundred forty-three million, nine hundred ninety-five thousand, seven hundred five".