2644098138818 has 8 divisors (see below), whose sum is σ = 3966296733840. Its totient is φ = 1321999227540.

The previous prime is 2644098138817. The next prime is 2644098138833. The reversal of 2644098138818 is 8188318904462.

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 (2644098138817) 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, 24854588 + ... + 24960743.

It is an arithmetic number, because the mean of its divisors is an integer number (495787091730).

Almost surely, 2^{2644098138818} is an apocalyptic number.

2644098138818 is a deficient number, since it is larger than the sum of its proper divisors (1322198595022).

2644098138818 is a wasteful number, since it uses less digits than its factorization.

2644098138818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49841872.

The product of its (nonzero) digits is 21233664, while the sum is 62.

The spelling of 2644098138818 in words is "two trillion, six hundred forty-four billion, ninety-eight million, one hundred thirty-eight thousand, eight hundred eighteen".