800024718421 has 4 divisors (see below), whose sum is σ = 800211950572. Its totient is φ = 799837486272.

The previous prime is 800024718403. The next prime is 800024718431. The reversal of 800024718421 is 124817420008.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 542747517796 + 257277200625 = 736714^2 + 507225^2 .

It is a cyclic number.

It is not a de Polignac number, because 800024718421 - 2¹³ = 800024710229 is a prime.

It is a super-3 number, since 3×800024718421³ (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 (800024718431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93609666 + ... + 93618211.

It is an arithmetic number, because the mean of its divisors is an integer number (200052987643).

Almost surely, 2^800024718421 is an apocalyptic number.

It is an amenable number.

800024718421 is a deficient number, since it is larger than the sum of its proper divisors (187232151).

800024718421 is a wasteful number, since it uses less digits than its factorization.

800024718421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187232150.

The product of its (nonzero) digits is 28672, while the sum is 37.

The spelling of 800024718421 in words is "eight hundred billion, twenty-four million, seven hundred eighteen thousand, four hundred twenty-one".