20130757068 has 12 divisors (see below), whose sum is σ = 46971766520. Its totient is φ = 6710252352.

The previous prime is 20130757057. The next prime is 20130757069. The reversal of 20130757068 is 86075703102.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20130757069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838781533 + ... + 838781556.

Almost surely, 2^20130757068 is an apocalyptic number.

It is an amenable number.

20130757068 is an abundant number, since it is smaller than the sum of its proper divisors (26841009452).

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

20130757068 is a wasteful number, since it uses less digits than its factorization.

20130757068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677563096 (or 1677563094 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 20130757068 in words is "twenty billion, one hundred thirty million, seven hundred fifty-seven thousand, sixty-eight".