11969143593 has 16 divisors (see below), whose sum is σ = 17424688896. Its totient is φ = 7247765840.

The previous prime is 11969143591. The next prime is 11969143597. The reversal of 11969143593 is 39534196911.

It is a cyclic number.

It is not a de Polignac number, because 11969143593 - 2¹ = 11969143591 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11969143591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117555 + ... + 194312.

It is an arithmetic number, because the mean of its divisors is an integer number (1089043056).

Almost surely, 2^11969143593 is an apocalyptic number.

It is an amenable number.

11969143593 is a deficient number, since it is larger than the sum of its proper divisors (5455545303).

11969143593 is a wasteful number, since it uses less digits than its factorization.

11969143593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313044.

The product of its digits is 787320, while the sum is 51.

The spelling of 11969143593 in words is "eleven billion, nine hundred sixty-nine million, one hundred forty-three thousand, five hundred ninety-three".