618142244121 has 24 divisors (see below), whose sum is σ = 922789281024. Its totient is φ = 398319072480.

The previous prime is 618142244107. The next prime is 618142244129. The reversal of 618142244121 is 121442241816.

618142244121 is a `hidden beast` number, since 6 + 1 + 8 + 14 + 224 + 412 + 1 = 666.

618142244121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 618142244121 - 2¹⁰ = 618142243097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (618142244129) 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, 1108786 + ... + 1570251.

It is an arithmetic number, because the mean of its divisors is an integer number (38449553376).

Almost surely, 2^618142244121 is an apocalyptic number.

It is an amenable number.

618142244121 is a deficient number, since it is larger than the sum of its proper divisors (304647036903).

618142244121 is a wasteful number, since it uses less digits than its factorization.

618142244121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679901 (or 2679898 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

Adding to 618142244121 its reverse (121442241816), we get a palindrome (739584485937).

The spelling of 618142244121 in words is "six hundred eighteen billion, one hundred forty-two million, two hundred forty-four thousand, one hundred twenty-one".