878020051 has 2 divisors, whose sum is σ = 878020052. Its totient is φ = 878020050.

The previous prime is 878020021. The next prime is 878020067. The reversal of 878020051 is 150020878.

878020051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 878020051 - 2⁹ = 878019539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 878019995 and 878020022.

It is not a weakly prime, because it can be changed into another prime (878020021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439010025 + 439010026.

It is an arithmetic number, because the mean of its divisors is an integer number (439010026).

Almost surely, 2^878020051 is an apocalyptic number.

878020051 is a deficient number, since it is larger than the sum of its proper divisors (1).

878020051 is an equidigital number, since it uses as much as digits as its factorization.

878020051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 878020051 is about 29631.4031223633. The cubic root of 878020051 is about 957.5647372646.

The spelling of 878020051 in words is "eight hundred seventy-eight million, twenty thousand, fifty-one".