68743900842 has 32 divisors (see below), whose sum is σ = 147342989952. Its totient is φ = 21325955904.

The previous prime is 68743900811. The next prime is 68743900847. The reversal of 68743900842 is 24800934786.

It is not an unprimeable number, because it can be changed into a prime (68743900847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6726573 + ... + 6736784.

It is an arithmetic number, because the mean of its divisors is an integer number (4604468436).

Almost surely, 2^68743900842 is an apocalyptic number.

68743900842 is an abundant number, since it is smaller than the sum of its proper divisors (78599089110).

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

68743900842 is a wasteful number, since it uses less digits than its factorization.

68743900842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13463422.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 68743900842 in words is "sixty-eight billion, seven hundred forty-three million, nine hundred thousand, eight hundred forty-two".