39728865119 has 4 divisors (see below), whose sum is σ = 41819858040. Its totient is φ = 37637872200.

The previous prime is 39728865091. The next prime is 39728865221. The reversal of 39728865119 is 91156882793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91156882793 = 109 ⋅836301677.

It is a cyclic number.

It is not a de Polignac number, because 39728865119 - 2¹² = 39728861023 is a prime.

It is a super-2 number, since 2×39728865119² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39728825119) 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, 1045496432 + ... + 1045496469.

It is an arithmetic number, because the mean of its divisors is an integer number (10454964510).

Almost surely, 2^39728865119 is an apocalyptic number.

39728865119 is a deficient number, since it is larger than the sum of its proper divisors (2090992921).

39728865119 is a wasteful number, since it uses less digits than its factorization.

39728865119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090992920.

The product of its digits is 6531840, while the sum is 59.

The spelling of 39728865119 in words is "thirty-nine billion, seven hundred twenty-eight million, eight hundred sixty-five thousand, one hundred nineteen".