68630995320 has 128 divisors (see below), whose sum is σ = 210259929600. Its totient is φ = 17915016704.

The previous prime is 68630995283. The next prime is 68630995399. The reversal of 68630995320 is 2359903686.

It is a super-4 number, since 4×68630995320⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2805301 + ... + 2829659.

It is an arithmetic number, because the mean of its divisors is an integer number (1642655700).

Almost surely, 2^68630995320 is an apocalyptic number.

68630995320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68630995320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105129964800).

68630995320 is an abundant number, since it is smaller than the sum of its proper divisors (141628934280).

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

68630995320 is a wasteful number, since it uses less digits than its factorization.

68630995320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24869 (or 24865 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 68630995320 in words is "sixty-eight billion, six hundred thirty million, nine hundred ninety-five thousand, three hundred twenty".