11173385817547 has 2 divisors, whose sum is σ = 11173385817548. Its totient is φ = 11173385817546.

The previous prime is 11173385817541. The next prime is 11173385817631. The reversal of 11173385817547 is 74571858337111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11173385817547 is a prime.

It is not a weakly prime, because it can be changed into another prime (11173385817541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5586692908773 + 5586692908774.

It is an arithmetic number, because the mean of its divisors is an integer number (5586692908774).

Almost surely, 2^{11173385817547} is an apocalyptic number.

11173385817547 is a deficient number, since it is larger than the sum of its proper divisors (1).

11173385817547 is an equidigital number, since it uses as much as digits as its factorization.

11173385817547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 61.

The spelling of 11173385817547 in words is "eleven trillion, one hundred seventy-three billion, three hundred eighty-five million, eight hundred seventeen thousand, five hundred forty-seven".