2609118505988 has 6 divisors (see below), whose sum is σ = 4565957385486. Its totient is φ = 1304559252992.

The previous prime is 2609118505957. The next prime is 2609118505991. The reversal of 2609118505988 is 8895058119062.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2539363357444 + 69755148544 = 1593538^2 + 264112^2 .

It is a super-2 number, since 2×2609118505988² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2609118505988.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326139813245 + ... + 326139813252.

It is an arithmetic number, because the mean of its divisors is an integer number (760992897581).

Almost surely, 2^{2609118505988} is an apocalyptic number.

It is an amenable number.

2609118505988 is a deficient number, since it is larger than the sum of its proper divisors (1956838879498).

2609118505988 is a wasteful number, since it uses less digits than its factorization.

2609118505988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652279626501 (or 652279626499 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 62.

The spelling of 2609118505988 in words is "two trillion, six hundred nine billion, one hundred eighteen million, five hundred five thousand, nine hundred eighty-eight".