2606631621218 has 8 divisors (see below), whose sum is σ = 3916608332112. Its totient is φ = 1301095510516.

The previous prime is 2606631621211. The next prime is 2606631621227. The reversal of 2606631621218 is 8121261366062.

2606631621218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2606631621211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110148580 + ... + 1110150927.

It is an arithmetic number, because the mean of its divisors is an integer number (489576041514).

Almost surely, 2^{2606631621218} is an apocalyptic number.

2606631621218 is a deficient number, since it is larger than the sum of its proper divisors (1309976710894).

2606631621218 is a wasteful number, since it uses less digits than its factorization.

2606631621218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220300096.

The product of its (nonzero) digits is 248832, while the sum is 44.

It can be divided in two parts, 260663 and 1621218, that added together give a palindrome (1881881).

The spelling of 2606631621218 in words is "two trillion, six hundred six billion, six hundred thirty-one million, six hundred twenty-one thousand, two hundred eighteen".