39999000001 has 8 divisors (see below), whose sum is σ = 42354351144. Its totient is φ = 37643923200.

The previous prime is 39998999993. The next prime is 39999000073. The reversal of 39999000001 is 10000099993.

It can be written as a sum of positive squares in 4 ways, for example, as 16364549776 + 23634450225 = 127924^2 + 153735^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39999000001 - 2³ = 39998999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39999000091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283191 + ... + 400243.

It is an arithmetic number, because the mean of its divisors is an integer number (5294293893).

Almost surely, 2^39999000001 is an apocalyptic number.

It is an amenable number.

39999000001 is a deficient number, since it is larger than the sum of its proper divisors (2355351143).

39999000001 is a wasteful number, since it uses less digits than its factorization.

39999000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137171.

The product of its (nonzero) digits is 19683, while the sum is 40.

Adding to 39999000001 its reverse (10000099993), we get a palindrome (49999099994).

The spelling of 39999000001 in words is "thirty-nine billion, nine hundred ninety-nine million, one", and thus it is an aban number.