11500708385 has 4 divisors (see below), whose sum is σ = 13800850068. Its totient is φ = 9200566704.

The previous prime is 11500708361. The next prime is 11500708411. The reversal of 11500708385 is 58380700511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8728791184 + 2771917201 = 93428^2 + 52649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11500708385 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150070834 + ... + 1150070843.

It is an arithmetic number, because the mean of its divisors is an integer number (3450212517).

Almost surely, 2^11500708385 is an apocalyptic number.

It is an amenable number.

11500708385 is a deficient number, since it is larger than the sum of its proper divisors (2300141683).

11500708385 is an equidigital number, since it uses as much as digits as its factorization.

11500708385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300141682.

The product of its (nonzero) digits is 33600, while the sum is 38.

The spelling of 11500708385 in words is "eleven billion, five hundred million, seven hundred eight thousand, three hundred eighty-five".