11291728783 has 8 divisors (see below), whose sum is σ = 11598437520. Its totient is φ = 10985100480.

The previous prime is 11291728769. The next prime is 11291728829. The reversal of 11291728783 is 38782719211.

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

It is a cyclic number.

It is not a de Polignac number, because 11291728783 - 2⁹ = 11291728271 is a prime.

It is a super-2 number, since 2×11291728783² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11291728183) 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, 361248 + ... + 391258.

It is an arithmetic number, because the mean of its divisors is an integer number (1449804690).

Almost surely, 2^11291728783 is an apocalyptic number.

11291728783 is a deficient number, since it is larger than the sum of its proper divisors (306708737).

11291728783 is a wasteful number, since it uses less digits than its factorization.

11291728783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40217.

The product of its digits is 338688, while the sum is 49.

The spelling of 11291728783 in words is "eleven billion, two hundred ninety-one million, seven hundred twenty-eight thousand, seven hundred eighty-three".