618980283009 has 81 divisors (see below), whose sum is σ = 1021655312769. Its totient is φ = 374714718840.

The previous prime is 618980283001. The next prime is 618980283023. The reversal of 618980283009 is 900382089816.

It is a happy number.

The square root of 618980283009 is 786753.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 618980283009 - 2³ = 618980283001 is a prime.

It is a super-6 number, since 6×618980283009⁶ (a number of 72 digits) contains 666666 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (618980283001) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 700996482 + ... + 700997364.

Almost surely, 2^618980283009 is an apocalyptic number.

618980283009 is the 786753-rd square number.

618980283009 is the 393377-th centered octagonal number.

It is an amenable number.

618980283009 is a deficient number, since it is larger than the sum of its proper divisors (402675029760).

618980283009 is an frugal number, since it uses more digits than its factorization.

618980283009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 618980283009 in words is "six hundred eighteen billion, nine hundred eighty million, two hundred eighty-three thousand, nine".