68363129386 has 4 divisors (see below), whose sum is σ = 102544694082. Its totient is φ = 34181564692.

The previous prime is 68363129383. The next prime is 68363129389. The reversal of 68363129386 is 68392136386.

68363129386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (68363129383) and next prime (68363129389).

It can be written as a sum of positive squares in only one way, i.e., 56136298761 + 12226830625 = 236931^2 + 110575^2 .

It is a super-3 number, since 3×68363129386³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68363129383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17090782345 + ... + 17090782348.

Almost surely, 2^68363129386 is an apocalyptic number.

68363129386 is a deficient number, since it is larger than the sum of its proper divisors (34181564696).

68363129386 is a wasteful number, since it uses less digits than its factorization.

68363129386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34181564695.

The product of its digits is 6718464, while the sum is 55.

The spelling of 68363129386 in words is "sixty-eight billion, three hundred sixty-three million, one hundred twenty-nine thousand, three hundred eighty-six".