38398571797 has 4 divisors (see below), whose sum is σ = 40419549280. Its totient is φ = 36377594316.

The previous prime is 38398571791. The next prime is 38398571833. The reversal of 38398571797 is 79717589383.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38398571797 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 (38398571791) 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, 1010488713 + ... + 1010488750.

It is an arithmetic number, because the mean of its divisors is an integer number (10104887320).

Almost surely, 2^38398571797 is an apocalyptic number.

It is an amenable number.

38398571797 is a deficient number, since it is larger than the sum of its proper divisors (2020977483).

38398571797 is a wasteful number, since it uses less digits than its factorization.

38398571797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020977482.

The product of its digits is 80015040, while the sum is 67.

The spelling of 38398571797 in words is "thirty-eight billion, three hundred ninety-eight million, five hundred seventy-one thousand, seven hundred ninety-seven".