8001812998 has 4 divisors (see below), whose sum is σ = 12002719500. Its totient is φ = 4000906498.

The previous prime is 8001812947. The next prime is 8001813041. The reversal of 8001812998 is 8992181008.

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

It is a super-2 number, since 2×8001812998² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000453248 + ... + 2000453251.

It is an arithmetic number, because the mean of its divisors is an integer number (3000679875).

Almost surely, 2^8001812998 is an apocalyptic number.

8001812998 is a deficient number, since it is larger than the sum of its proper divisors (4000906502).

8001812998 is a wasteful number, since it uses less digits than its factorization.

8001812998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000906501.

The product of its (nonzero) digits is 82944, while the sum is 46.

The square root of 8001812998 is about 89452.8534927757. The cubic root of 8001812998 is about 2000.1510717550.

The spelling of 8001812998 in words is "eight billion, one million, eight hundred twelve thousand, nine hundred ninety-eight".