38223359989 has 4 divisors (see below), whose sum is σ = 38233758924. Its totient is φ = 38212961056.

The previous prime is 38223359987. The next prime is 38223360001. The reversal of 38223359989 is 98995332283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98995332283 = 1811 ⋅54663353.

It can be written as a sum of positive squares in 2 ways, for example, as 25870148964 + 12353211025 = 160842^2 + 111145^2 .

It is a cyclic number.

It is not a de Polignac number, because 38223359989 - 2¹ = 38223359987 is a prime.

It is a super-2 number, since 2×38223359989² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38223359987) 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, 5193952 + ... + 5201305.

It is an arithmetic number, because the mean of its divisors is an integer number (9558439731).

Almost surely, 2^38223359989 is an apocalyptic number.

It is an amenable number.

38223359989 is a deficient number, since it is larger than the sum of its proper divisors (10398935).

38223359989 is a wasteful number, since it uses less digits than its factorization.

38223359989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10398934.

The product of its digits is 25194240, while the sum is 61.

The spelling of 38223359989 in words is "thirty-eight billion, two hundred twenty-three million, three hundred fifty-nine thousand, nine hundred eighty-nine".