11729268999 has 24 divisors (see below), whose sum is σ = 19395316512. Its totient is φ = 6691115520.

The previous prime is 11729268989. The next prime is 11729269007. The reversal of 11729268999 is 99986292711.

It is a de Polignac number, because none of the positive numbers 2^k-11729268999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11729268989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119622 + ... + 194339.

It is an arithmetic number, because the mean of its divisors is an integer number (808138188).

Almost surely, 2^11729268999 is an apocalyptic number.

11729268999 is a deficient number, since it is larger than the sum of its proper divisors (7666047513).

11729268999 is a wasteful number, since it uses less digits than its factorization.

11729268999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314567 (or 314564 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 63.

The spelling of 11729268999 in words is "eleven billion, seven hundred twenty-nine million, two hundred sixty-eight thousand, nine hundred ninety-nine".