618001117026 has 16 divisors (see below), whose sum is σ = 1236264100128. Its totient is φ = 205956728000.

The previous prime is 618001116907. The next prime is 618001117031. The reversal of 618001117026 is 620711100816.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10880400 + ... + 10937051.

It is an arithmetic number, because the mean of its divisors is an integer number (77266506258).

Almost surely, 2^618001117026 is an apocalyptic number.

618001117026 is an abundant number, since it is smaller than the sum of its proper divisors (618262983102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618001117026 is a wasteful number, since it uses less digits than its factorization.

618001117026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21822177.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 618001117026 in words is "six hundred eighteen billion, one million, one hundred seventeen thousand, twenty-six".