68434727961 has 8 divisors (see below), whose sum is σ = 96613733664. Its totient is φ = 42939437120.

The previous prime is 68434727947. The next prime is 68434727981. The reversal of 68434727961 is 16972743486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68434727961 - 2¹⁵ = 68434695193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68434727981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670928655 + ... + 670928756.

It is an arithmetic number, because the mean of its divisors is an integer number (12076716708).

Almost surely, 2^68434727961 is an apocalyptic number.

It is an amenable number.

68434727961 is a deficient number, since it is larger than the sum of its proper divisors (28179005703).

68434727961 is a wasteful number, since it uses less digits than its factorization.

68434727961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341857431.

The product of its digits is 12192768, while the sum is 57.

The spelling of 68434727961 in words is "sixty-eight billion, four hundred thirty-four million, seven hundred twenty-seven thousand, nine hundred sixty-one".