800000001111111 has 8 divisors (see below), whose sum is σ = 1066667040000000. Its totient is φ = 533333148148152.

The previous prime is 800000001111029. The next prime is 800000001111131. The reversal of 800000001111111 is 111111100000008.

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

It is not a de Polignac number, because 800000001111111 - 2¹¹ = 800000001109063 is a prime.

800000001111111 is a modest number, since divided by 1111111 gives 8 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800000001111131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36111111 + ... + 53888888.

It is an arithmetic number, because the mean of its divisors is an integer number (133333380000000).

Almost surely, 2^{800000001111111} is an apocalyptic number.

800000001111111 is a deficient number, since it is larger than the sum of its proper divisors (266667038888889).

800000001111111 is a wasteful number, since it uses less digits than its factorization.

800000001111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92962965.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 800000001111111 its reverse (111111100000008), we get a palindrome (911111101111119).

The spelling of 800000001111111 in words is "eight hundred trillion, one million, one hundred eleven thousand, one hundred eleven".