800638194375 has 90 divisors (see below), whose sum is σ = 1535145621152. Its totient is φ = 401888160000.

The previous prime is 800638194347. The next prime is 800638194379. The reversal of 800638194375 is 573491836008.

800638194375 is a `hidden beast` number, since 80 + 0 + 6 + 3 + 8 + 194 + 375 = 666.

800638194375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 800638194375 - 2¹⁴ = 800638177991 is a prime.

It is a super-3 number, since 3×800638194375³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800638194379) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 1379370 + ... + 1871880.

Almost surely, 2^800638194375 is an apocalyptic number.

800638194375 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

800638194375 is a deficient number, since it is larger than the sum of its proper divisors (734507426777).

800638194375 is a wasteful number, since it uses less digits than its factorization.

800638194375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492571 (or 492536 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 800638194375 in words is "eight hundred billion, six hundred thirty-eight million, one hundred ninety-four thousand, three hundred seventy-five".