878298854971 has 2 divisors, whose sum is σ = 878298854972. Its totient is φ = 878298854970.

The previous prime is 878298854969. The next prime is 878298855001. The reversal of 878298854971 is 179458892878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 878298854971 - 2¹ = 878298854969 is a prime.

Together with 878298854969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (878298854071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439149427485 + 439149427486.

It is an arithmetic number, because the mean of its divisors is an integer number (439149427486).

Almost surely, 2^878298854971 is an apocalyptic number.

878298854971 is a deficient number, since it is larger than the sum of its proper divisors (1).

878298854971 is an equidigital number, since it uses as much as digits as its factorization.

878298854971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 650280960, while the sum is 76.

The spelling of 878298854971 in words is "eight hundred seventy-eight billion, two hundred ninety-eight million, eight hundred fifty-four thousand, nine hundred seventy-one".