11291204645 has 16 divisors (see below), whose sum is σ = 15622122240. Its totient is φ = 7674019584.

The previous prime is 11291204627. The next prime is 11291204647. The reversal of 11291204645 is 54640219211.

It is not a de Polignac number, because 11291204645 - 2⁶ = 11291204581 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11291204647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1423505 + ... + 1431414.

It is an arithmetic number, because the mean of its divisors is an integer number (976382640).

Almost surely, 2^11291204645 is an apocalyptic number.

It is an amenable number.

11291204645 is a deficient number, since it is larger than the sum of its proper divisors (4330917595).

11291204645 is a wasteful number, since it uses less digits than its factorization.

11291204645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855044.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 11291204645 in words is "eleven billion, two hundred ninety-one million, two hundred four thousand, six hundred forty-five".