878568051 has 4 divisors (see below), whose sum is σ = 1171424072. Its totient is φ = 585712032.

The previous prime is 878568029. The next prime is 878568059. The reversal of 878568051 is 150865878.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 878568051 - 2¹⁵ = 878535283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878568059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146428006 + ... + 146428011.

It is an arithmetic number, because the mean of its divisors is an integer number (292856018).

Almost surely, 2^878568051 is an apocalyptic number.

878568051 is a deficient number, since it is larger than the sum of its proper divisors (292856021).

878568051 is a wasteful number, since it uses less digits than its factorization.

878568051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292856020.

The product of its (nonzero) digits is 537600, while the sum is 48.

The square root of 878568051 is about 29640.6486265061. The cubic root of 878568051 is about 957.7639112824.

The spelling of 878568051 in words is "eight hundred seventy-eight million, five hundred sixty-eight thousand, fifty-one".