810201078 has 48 divisors (see below), whose sum is σ = 1850612400. Its totient is φ = 255467520.

The previous prime is 810201061. The next prime is 810201103. The reversal of 810201078 is 870102018.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 299958 + ... + 302646.

It is an arithmetic number, because the mean of its divisors is an integer number (38554425).

Almost surely, 2^810201078 is an apocalyptic number.

810201078 is an abundant number, since it is smaller than the sum of its proper divisors (1040411322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

810201078 is a wasteful number, since it uses less digits than its factorization.

810201078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597 (or 3594 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 810201078 is about 28464.0313026809. The cubic root of 810201078 is about 932.2468807250.

The spelling of 810201078 in words is "eight hundred ten million, two hundred one thousand, seventy-eight".