878127011 has 2 divisors, whose sum is σ = 878127012. Its totient is φ = 878127010.

The previous prime is 878127007. The next prime is 878127013. The reversal of 878127011 is 110721878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 878127011 - 2² = 878127007 is a prime.

It is a super-2 number, since 2×878127011² = 1542214094895588242, which contains 22 as substring.

Together with 878127013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (878127013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439063505 + 439063506.

It is an arithmetic number, because the mean of its divisors is an integer number (439063506).

Almost surely, 2^878127011 is an apocalyptic number.

878127011 is a deficient number, since it is larger than the sum of its proper divisors (1).

878127011 is an equidigital number, since it uses as much as digits as its factorization.

878127011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 35.

The square root of 878127011 is about 29633.2079093709. The cubic root of 878127011 is about 957.6036190515.

Adding to 878127011 its reverse (110721878), we get a palindrome (988848889).

The spelling of 878127011 in words is "eight hundred seventy-eight million, one hundred twenty-seven thousand, eleven".