4039597781849 has 8 divisors (see below), whose sum is σ = 4859666504640. Its totient is φ = 3280274890416.

The previous prime is 4039597781837. The next prime is 4039597781851. The reversal of 4039597781849 is 9481877959304.

It is a happy number.

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

It is not a de Polignac number, because 4039597781849 - 2¹² = 4039597777753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4039597721849) 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, 15186457694 + ... + 15186457959.

It is an arithmetic number, because the mean of its divisors is an integer number (607458313080).

Almost surely, 2^{4039597781849} is an apocalyptic number.

It is an amenable number.

4039597781849 is a deficient number, since it is larger than the sum of its proper divisors (820068722791).

4039597781849 is a wasteful number, since it uses less digits than its factorization.

4039597781849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30372915679.

The product of its (nonzero) digits is 548674560, while the sum is 74.

The spelling of 4039597781849 in words is "four trillion, thirty-nine billion, five hundred ninety-seven million, seven hundred eighty-one thousand, eight hundred forty-nine".