2311969754489 has 16 divisors (see below), whose sum is σ = 2365284293568. Its totient is φ = 2259288056832.

The previous prime is 2311969754477. The next prime is 2311969754533. The reversal of 2311969754489 is 9844579691132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2311969754489 - 2¹² = 2311969750393 is a prime.

It is a super-2 number, since 2×2311969754489² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311969754459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14306789 + ... + 14467485.

It is an arithmetic number, because the mean of its divisors is an integer number (147830268348).

Almost surely, 2^{2311969754489} is an apocalyptic number.

It is an amenable number.

2311969754489 is a deficient number, since it is larger than the sum of its proper divisors (53314539079).

2311969754489 is a wasteful number, since it uses less digits than its factorization.

2311969754489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162664.

The product of its digits is 117573120, while the sum is 68.

The spelling of 2311969754489 in words is "two trillion, three hundred eleven billion, nine hundred sixty-nine million, seven hundred fifty-four thousand, four hundred eighty-nine".