800505825078 has 32 divisors (see below), whose sum is σ = 1606692959712. Its totient is φ = 265889792000.

The previous prime is 800505825011. The next prime is 800505825113. The reversal of 800505825078 is 870528505008.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2118358 + ... + 2467478.

It is an arithmetic number, because the mean of its divisors is an integer number (50209154991).

Almost surely, 2^800505825078 is an apocalyptic number.

800505825078 is an abundant number, since it is smaller than the sum of its proper divisors (806187134634).

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

800505825078 is a wasteful number, since it uses less digits than its factorization.

800505825078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350480.

The product of its (nonzero) digits is 896000, while the sum is 48.

The spelling of 800505825078 in words is "eight hundred billion, five hundred five million, eight hundred twenty-five thousand, seventy-eight".