878776405042667 has 2 divisors, whose sum is σ = 878776405042668. Its totient is φ = 878776405042666.

The previous prime is 878776405042631. The next prime is 878776405042703. The reversal of 878776405042667 is 766240504677878.

It is a balanced prime because it is at equal distance from previous prime (878776405042631) and next prime (878776405042703).

It is a cyclic number.

It is not a de Polignac number, because 878776405042667 - 2¹⁰ = 878776405041643 is a prime.

It is not a weakly prime, because it can be changed into another prime (878776455042667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439388202521333 + 439388202521334.

It is an arithmetic number, because the mean of its divisors is an integer number (439388202521334).

Almost surely, 2^{878776405042667} is an apocalyptic number.

878776405042667 is a deficient number, since it is larger than the sum of its proper divisors (1).

878776405042667 is an equidigital number, since it uses as much as digits as its factorization.

878776405042667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5310627840, while the sum is 77.

The spelling of 878776405042667 in words is "eight hundred seventy-eight trillion, seven hundred seventy-six billion, four hundred five million, forty-two thousand, six hundred sixty-seven".