11701215947 has 2 divisors, whose sum is σ = 11701215948. Its totient is φ = 11701215946.

The previous prime is 11701215931. The next prime is 11701215959. The reversal of 11701215947 is 74951210711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11701215947 - 2⁴ = 11701215931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11701215947.

It is not a weakly prime, because it can be changed into another prime (11701215047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5850607973 + 5850607974.

It is an arithmetic number, because the mean of its divisors is an integer number (5850607974).

Almost surely, 2^11701215947 is an apocalyptic number.

11701215947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11701215947 is an equidigital number, since it uses as much as digits as its factorization.

11701215947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 38.

The spelling of 11701215947 in words is "eleven billion, seven hundred one million, two hundred fifteen thousand, nine hundred forty-seven".