68000099009 has 4 divisors (see below), whose sum is σ = 69152643120. Its totient is φ = 66847554900.

The previous prime is 68000099003. The next prime is 68000099023. The reversal of 68000099009 is 90099000086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68000099009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68000099003) 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, 576271967 + ... + 576272084.

It is an arithmetic number, because the mean of its divisors is an integer number (17288160780).

Almost surely, 2^68000099009 is an apocalyptic number.

It is an amenable number.

68000099009 is a deficient number, since it is larger than the sum of its proper divisors (1152544111).

68000099009 is a wasteful number, since it uses less digits than its factorization.

68000099009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152544110.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 68000099009 in words is "sixty-eight billion, ninety-nine thousand, nine".