11500535217 has 16 divisors (see below), whose sum is σ = 15832114688. Its totient is φ = 7418096640.

The previous prime is 11500535209. The next prime is 11500535231. The reversal of 11500535217 is 71253500511.

It is not a de Polignac number, because 11500535217 - 2³ = 11500535209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11500535237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543243 + ... + 564015.

It is an arithmetic number, because the mean of its divisors is an integer number (989507168).

Almost surely, 2^11500535217 is an apocalyptic number.

It is an amenable number.

11500535217 is a deficient number, since it is larger than the sum of its proper divisors (4331579471).

11500535217 is a wasteful number, since it uses less digits than its factorization.

11500535217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26760.

The product of its (nonzero) digits is 5250, while the sum is 30.

The spelling of 11500535217 in words is "eleven billion, five hundred million, five hundred thirty-five thousand, two hundred seventeen".