11475447887 has 2 divisors, whose sum is σ = 11475447888. Its totient is φ = 11475447886.

The previous prime is 11475447869. The next prime is 11475447901. The reversal of 11475447887 is 78874457411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11475447887 - 2¹⁴ = 11475431503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11475447827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5737723943 + 5737723944.

It is an arithmetic number, because the mean of its divisors is an integer number (5737723944).

Almost surely, 2^11475447887 is an apocalyptic number.

11475447887 is a deficient number, since it is larger than the sum of its proper divisors (1).

11475447887 is an equidigital number, since it uses as much as digits as its factorization.

11475447887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7024640, while the sum is 56.

The spelling of 11475447887 in words is "eleven billion, four hundred seventy-five million, four hundred forty-seven thousand, eight hundred eighty-seven".