878540011 has 2 divisors, whose sum is σ = 878540012. Its totient is φ = 878540010.

The previous prime is 878539939. The next prime is 878540017. The reversal of 878540011 is 110045878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 878540011 - 2²¹ = 876442859 is a prime.

It is a super-3 number, since 3×878540011³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (878540017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439270005 + 439270006.

It is an arithmetic number, because the mean of its divisors is an integer number (439270006).

Almost surely, 2^878540011 is an apocalyptic number.

878540011 is a deficient number, since it is larger than the sum of its proper divisors (1).

878540011 is an equidigital number, since it uses as much as digits as its factorization.

878540011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 878540011 is about 29640.1756236362. The cubic root of 878540011 is about 957.7537219803.

Adding to 878540011 its reverse (110045878), we get a palindrome (988585889).

The spelling of 878540011 in words is "eight hundred seventy-eight million, five hundred forty thousand, eleven".