63690765330 has 64 divisors (see below), whose sum is σ = 159867924480. Its totient is φ = 16208677056.

The previous prime is 63690765329. The next prime is 63690765331. The reversal of 63690765330 is 3356709636.

It is an interprime number because it is at equal distance from previous prime (63690765329) and next prime (63690765331).

It is a super-2 number, since 2×63690765330² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63690765330.

It is not an unprimeable number, because it can be changed into a prime (63690765331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197779 + ... + 408041.

It is an arithmetic number, because the mean of its divisors is an integer number (2497936320).

Almost surely, 2^63690765330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63690765330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79933962240).

63690765330 is an abundant number, since it is smaller than the sum of its proper divisors (96177159150).

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

63690765330 is a wasteful number, since it uses less digits than its factorization.

63690765330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210735.

The product of its (nonzero) digits is 1837080, while the sum is 48.

The spelling of 63690765330 in words is "sixty-three billion, six hundred ninety million, seven hundred sixty-five thousand, three hundred thirty".