39243268499 has 4 divisors (see below), whose sum is σ = 39406103880. Its totient is φ = 39080433120.

The previous prime is 39243268483. The next prime is 39243268507. The reversal of 39243268499 is 99486234293.

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 39243268499 - 2⁴ = 39243268483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39243264499) 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, 81417329 + ... + 81417810.

It is an arithmetic number, because the mean of its divisors is an integer number (9851525970).

Almost surely, 2^39243268499 is an apocalyptic number.

39243268499 is a deficient number, since it is larger than the sum of its proper divisors (162835381).

39243268499 is a wasteful number, since it uses less digits than its factorization.

39243268499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162835380.

The product of its digits is 20155392, while the sum is 59.

The spelling of 39243268499 in words is "thirty-nine billion, two hundred forty-three million, two hundred sixty-eight thousand, four hundred ninety-nine".