11011853817 has 12 divisors (see below), whose sum is σ = 15907350420. Its totient is φ = 7340617728.

The previous prime is 11011853779. The next prime is 11011853873. The reversal of 11011853817 is 71835811011.

11011853817 is a `hidden beast` number, since 1 + 1 + 0 + 118 + 538 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4599688041 + 6412165776 = 67821^2 + 80076^2 .

It is not a de Polignac number, because 11011853817 - 2⁷ = 11011853689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11011855817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78609 + ... + 167937.

It is an arithmetic number, because the mean of its divisors is an integer number (1325612535).

Almost surely, 2^11011853817 is an apocalyptic number.

It is an amenable number.

11011853817 is a deficient number, since it is larger than the sum of its proper divisors (4895496603).

11011853817 is a wasteful number, since it uses less digits than its factorization.

11011853817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103032 (or 103029 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 36.

The spelling of 11011853817 in words is "eleven billion, eleven million, eight hundred fifty-three thousand, eight hundred seventeen".