2389636784949 has 8 divisors (see below), whose sum is σ = 3288962456832. Its totient is φ = 1541701151520.

The previous prime is 2389636784819. The next prime is 2389636784987. The reversal of 2389636784949 is 9494876369832.

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

It is not a de Polignac number, because 2389636784949 - 2⁸ = 2389636784693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389636784149) 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, 12847509504 + ... + 12847509689.

It is an arithmetic number, because the mean of its divisors is an integer number (411120307104).

Almost surely, 2^{2389636784949} is an apocalyptic number.

It is an amenable number.

2389636784949 is a deficient number, since it is larger than the sum of its proper divisors (899325671883).

2389636784949 is a wasteful number, since it uses less digits than its factorization.

2389636784949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25695019227.

The product of its digits is 3386105856, while the sum is 78.

The spelling of 2389636784949 in words is "two trillion, three hundred eighty-nine billion, six hundred thirty-six million, seven hundred eighty-four thousand, nine hundred forty-nine".