8442501111 has 24 divisors (see below), whose sum is σ = 13345886736. Its totient is φ = 5100301440.

The previous prime is 8442501091. The next prime is 8442501113. The reversal of 8442501111 is 1111052448.

It is a happy number.

8442501111 is a `hidden beast` number, since 8 + 4 + 42 + 501 + 111 = 666.

It is not a de Polignac number, because 8442501111 - 2²⁷ = 8308283383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8442501113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105240 + ... + 167213.

It is an arithmetic number, because the mean of its divisors is an integer number (556078614).

Almost surely, 2^8442501111 is an apocalyptic number.

8442501111 is a deficient number, since it is larger than the sum of its proper divisors (4903385625).

8442501111 is a wasteful number, since it uses less digits than its factorization.

8442501111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272783 (or 272780 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 8442501111 is about 91883.0839219059. The cubic root of 8442501111 is about 2036.2153583006.

Adding to 8442501111 its reverse (1111052448), we get a palindrome (9553553559).

The spelling of 8442501111 in words is "eight billion, four hundred forty-two million, five hundred one thousand, one hundred eleven".