4051640561244 has 12 divisors (see below), whose sum is σ = 9453827976264. Its totient is φ = 1350546853744.

The previous prime is 4051640561237. The next prime is 4051640561327. The reversal of 4051640561244 is 4421650461504.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 4051640561196 and 4051640561205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168818356707 + ... + 168818356730.

It is an arithmetic number, because the mean of its divisors is an integer number (787818998022).

Almost surely, 2^{4051640561244} is an apocalyptic number.

It is an amenable number.

4051640561244 is an abundant number, since it is smaller than the sum of its proper divisors (5402187415020).

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

4051640561244 is a wasteful number, since it uses less digits than its factorization.

4051640561244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337636713444 (or 337636713442 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 4051640561244 in words is "four trillion, fifty-one billion, six hundred forty million, five hundred sixty-one thousand, two hundred forty-four".