75630481866 has 64 divisors (see below), whose sum is σ = 171042278400. Its totient is φ = 24764611248.

The previous prime is 75630481847. The next prime is 75630481867. The reversal of 75630481866 is 66818403657.

75630481866 is a `hidden beast` number, since 7 + 56 + 30 + 481 + 86 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (75630481867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4716835 + ... + 4732841.

It is an arithmetic number, because the mean of its divisors is an integer number (2672535600).

Almost surely, 2^75630481866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75630481866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85521139200).

75630481866 is an abundant number, since it is smaller than the sum of its proper divisors (95411796534).

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

75630481866 is a wasteful number, since it uses less digits than its factorization.

75630481866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17560 (or 17554 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 75630481866 in words is "seventy-five billion, six hundred thirty million, four hundred eighty-one thousand, eight hundred sixty-six".