461778360330 has 192 divisors, whose sum is σ = 1312223794560. Its totient is φ = 103668364800.

The previous prime is 461778360319. The next prime is 461778360331. The reversal of 461778360330 is 33063877164.

It is a self number, because there is not a number n which added to its sum of digits gives 461778360330.

It is not an unprimeable number, because it can be changed into a prime (461778360331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 161403100 + ... + 161405960.

It is an arithmetic number, because the mean of its divisors is an integer number (6834498930).

Almost surely, 2^461778360330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 461778360330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656111897280).

461778360330 is an abundant number, since it is smaller than the sum of its proper divisors (850445434230).

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

461778360330 is a wasteful number, since it uses less digits than its factorization.

461778360330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805 (or 4798 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 461778360330 in words is "four hundred sixty-one billion, seven hundred seventy-eight million, three hundred sixty thousand, three hundred thirty".