11538346535 has 4 divisors (see below), whose sum is σ = 13846015848. Its totient is φ = 9230677224.

The previous prime is 11538346517. The next prime is 11538346553. The reversal of 11538346535 is 53564383511.

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

It is an interprime number because it is at equal distance from previous prime (11538346517) and next prime (11538346553).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11538346535 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 3 ways as a sum of consecutive naturals, for example, 1153834649 + ... + 1153834658.

It is an arithmetic number, because the mean of its divisors is an integer number (3461503962).

Almost surely, 2^11538346535 is an apocalyptic number.

11538346535 is a deficient number, since it is larger than the sum of its proper divisors (2307669313).

11538346535 is an equidigital number, since it uses as much as digits as its factorization.

11538346535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307669312.

The product of its digits is 648000, while the sum is 44.

The spelling of 11538346535 in words is "eleven billion, five hundred thirty-eight million, three hundred forty-six thousand, five hundred thirty-five".