11129640845 has 8 divisors (see below), whose sum is σ = 13480388064. Its totient is φ = 8820499984.

The previous prime is 11129640839. The next prime is 11129640857. The reversal of 11129640845 is 54804692111.

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 11129640845 - 2¹⁰ = 11129639821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10400999 + ... + 10402068.

It is an arithmetic number, because the mean of its divisors is an integer number (1685048508).

Almost surely, 2^11129640845 is an apocalyptic number.

It is an amenable number.

11129640845 is a deficient number, since it is larger than the sum of its proper divisors (2350747219).

11129640845 is a wasteful number, since it uses less digits than its factorization.

11129640845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20803179.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 11129640845 in words is "eleven billion, one hundred twenty-nine million, six hundred forty thousand, eight hundred forty-five".