2939731296989 has 2 divisors, whose sum is σ = 2939731296990. Its totient is φ = 2939731296988.

The previous prime is 2939731296961. The next prime is 2939731297039. The reversal of 2939731296989 is 9896921379392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2738803234489 + 200928062500 = 1654933^2 + 448250^2 .

It is a cyclic number.

It is not a de Polignac number, because 2939731296989 - 2²⁴ = 2939714519773 is a prime.

It is a super-2 number, since 2×2939731296989² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2939731896989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1469865648494 + 1469865648495.

It is an arithmetic number, because the mean of its divisors is an integer number (1469865648495).

Almost surely, 2^{2939731296989} is an apocalyptic number.

It is an amenable number.

2939731296989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2939731296989 is an equidigital number, since it uses as much as digits as its factorization.

2939731296989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714256704, while the sum is 77.

The spelling of 2939731296989 in words is "two trillion, nine hundred thirty-nine billion, seven hundred thirty-one million, two hundred ninety-six thousand, nine hundred eighty-nine".