878681788547 has 2 divisors, whose sum is σ = 878681788548. Its totient is φ = 878681788546.

The previous prime is 878681788531. The next prime is 878681788549. The reversal of 878681788547 is 745887186878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 878681788547 - 2⁴ = 878681788531 is a prime.

Together with 878681788549, 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 (878681788549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439340894273 + 439340894274.

It is an arithmetic number, because the mean of its divisors is an integer number (439340894274).

Almost surely, 2^878681788547 is an apocalyptic number.

878681788547 is a deficient number, since it is larger than the sum of its proper divisors (1).

878681788547 is an equidigital number, since it uses as much as digits as its factorization.

878681788547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1348730880, while the sum is 77.

The spelling of 878681788547 in words is "eight hundred seventy-eight billion, six hundred eighty-one million, seven hundred eighty-eight thousand, five hundred forty-seven".