810878051 has 8 divisors (see below), whose sum is σ = 833433024. Its totient is φ = 788356800.

The previous prime is 810878027. The next prime is 810878069. The reversal of 810878051 is 150878018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 810878051 - 2¹⁰ = 810877027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 810877996 and 810878014.

It is not an unprimeable number, because it can be changed into a prime (810878011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44951 + ... + 60351.

It is an arithmetic number, because the mean of its divisors is an integer number (104179128).

Almost surely, 2^810878051 is an apocalyptic number.

810878051 is a deficient number, since it is larger than the sum of its proper divisors (22554973).

810878051 is a wasteful number, since it uses less digits than its factorization.

810878051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16861.

The product of its (nonzero) digits is 17920, while the sum is 38.

The square root of 810878051 is about 28475.9205470166. The cubic root of 810878051 is about 932.5064583740.

The spelling of 810878051 in words is "eight hundred ten million, eight hundred seventy-eight thousand, fifty-one".