201286430730 has 256 divisors, whose sum is σ = 704435097600. Its totient is φ = 39624318720.

The previous prime is 201286430729. The next prime is 201286430731. The reversal of 201286430730 is 37034682102.

It is a happy number.

201286430730 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 8 + 643 + 0 + 7 + 3 + 0 = 666.

201286430730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201286430729) and next prime (201286430731).

It is not an unprimeable number, because it can be changed into a prime (201286430731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 140224 + ... + 649796.

It is an arithmetic number, because the mean of its divisors is an integer number (2751699600).

Almost surely, 2^201286430730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201286430730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352217548800).

201286430730 is an abundant number, since it is smaller than the sum of its proper divisors (503148666870).

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

201286430730 is a wasteful number, since it uses less digits than its factorization.

201286430730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509626 (or 509620 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 201286430730 in words is "two hundred one billion, two hundred eighty-six million, four hundred thirty thousand, seven hundred thirty".