68006604861 has 48 divisors (see below), whose sum is σ = 113423396800. Its totient is φ = 40030534368.

The previous prime is 68006604803. The next prime is 68006604863. The reversal of 68006604861 is 16840660086.

It is not a de Polignac number, because 68006604861 - 2¹⁹ = 68006080573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68006604863) 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 47 ways as a sum of consecutive naturals, for example, 2550 + ... + 368808.

Almost surely, 2^68006604861 is an apocalyptic number.

It is an amenable number.

68006604861 is a deficient number, since it is larger than the sum of its proper divisors (45416791939).

68006604861 is a wasteful number, since it uses less digits than its factorization.

68006604861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366327 (or 366298 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 68006604861 in words is "sixty-eight billion, six million, six hundred four thousand, eight hundred sixty-one".