4861205305780 has 48 divisors (see below), whose sum is σ = 10546717902336. Its totient is φ = 1880171303040.

The previous prime is 4861205305721. The next prime is 4861205305787. The reversal of 4861205305780 is 875035021684.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4861205305787) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2566779 + ... + 4038658.

It is an arithmetic number, because the mean of its divisors is an integer number (219723289632).

Almost surely, 2^{4861205305780} is an apocalyptic number.

It is an amenable number.

4861205305780 is an abundant number, since it is smaller than the sum of its proper divisors (5685512596556).

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

4861205305780 is a wasteful number, since it uses less digits than its factorization.

4861205305780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606664 (or 6606662 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 4861205305780 in words is "four trillion, eight hundred sixty-one billion, two hundred five million, three hundred five thousand, seven hundred eighty".