11477979671 has 2 divisors, whose sum is σ = 11477979672. Its totient is φ = 11477979670.

The previous prime is 11477979631. The next prime is 11477979701. The reversal of 11477979671 is 17697977411.

It is a strong prime.

It is an emirp because it is prime and its reverse (17697977411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11477979671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11477979671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11477979631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5738989835 + 5738989836.

It is an arithmetic number, because the mean of its divisors is an integer number (5738989836).

Almost surely, 2^11477979671 is an apocalyptic number.

11477979671 is a deficient number, since it is larger than the sum of its proper divisors (1).

11477979671 is an equidigital number, since it uses as much as digits as its factorization.

11477979671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4667544, while the sum is 59.

The spelling of 11477979671 in words is "eleven billion, four hundred seventy-seven million, nine hundred seventy-nine thousand, six hundred seventy-one".