2644830204140 has 12 divisors (see below), whose sum is σ = 5554143428736. Its totient is φ = 1057932081648.

The previous prime is 2644830204127. The next prime is 2644830204173. The reversal of 2644830204140 is 414020384462.

It is a junction number, because it is equal to n+sod(n) for n = 2644830204094 and 2644830204103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66120755084 + ... + 66120755123.

It is an arithmetic number, because the mean of its divisors is an integer number (462845285728).

Almost surely, 2^{2644830204140} is an apocalyptic number.

2644830204140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2644830204140 is an abundant number, since it is smaller than the sum of its proper divisors (2909313224596).

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

2644830204140 is a wasteful number, since it uses less digits than its factorization.

2644830204140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132241510216 (or 132241510214 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 2644830204140 in words is "two trillion, six hundred forty-four billion, eight hundred thirty million, two hundred four thousand, one hundred forty".