800618425638 has 8 divisors (see below), whose sum is σ = 1601236851288. Its totient is φ = 266872808544.

The previous prime is 800618425613. The next prime is 800618425661. The reversal of 800618425638 is 836524816008.

It is a happy number.

800618425638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

800618425638 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66718202131 + ... + 66718202142.

It is an arithmetic number, because the mean of its divisors is an integer number (200154606411).

Almost surely, 2^800618425638 is an apocalyptic number.

800618425638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

800618425638 is a wasteful number, since it uses less digits than its factorization.

800618425638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133436404278.

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 800618425638 in words is "eight hundred billion, six hundred eighteen million, four hundred twenty-five thousand, six hundred thirty-eight".