68377100009 has 2 divisors, whose sum is σ = 68377100010. Its totient is φ = 68377100008.

The previous prime is 68377099997. The next prime is 68377100023. The reversal of 68377100009 is 90000177386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40110075625 + 28267024384 = 200275^2 + 168128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68377100009 is a prime.

It is not a weakly prime, because it can be changed into another prime (68377100809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34188550004 + 34188550005.

It is an arithmetic number, because the mean of its divisors is an integer number (34188550005).

Almost surely, 2^68377100009 is an apocalyptic number.

It is an amenable number.

68377100009 is a deficient number, since it is larger than the sum of its proper divisors (1).

68377100009 is an equidigital number, since it uses as much as digits as its factorization.

68377100009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 68377100009 in words is "sixty-eight billion, three hundred seventy-seven million, one hundred thousand, nine".