68587654313 has 2 divisors, whose sum is σ = 68587654314. Its totient is φ = 68587654312.

The previous prime is 68587654309. The next prime is 68587654327. The reversal of 68587654313 is 31345678586.

68587654313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43034672704 + 25552981609 = 207448^2 + 159853^2 .

It is a cyclic number.

It is not a de Polignac number, because 68587654313 - 2² = 68587654309 is a prime.

It is not a weakly prime, because it can be changed into another prime (68587654363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34293827156 + 34293827157.

It is an arithmetic number, because the mean of its divisors is an integer number (34293827157).

Almost surely, 2^68587654313 is an apocalyptic number.

It is an amenable number.

68587654313 is a deficient number, since it is larger than the sum of its proper divisors (1).

68587654313 is an equidigital number, since it uses as much as digits as its factorization.

68587654313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 56.

The spelling of 68587654313 in words is "sixty-eight billion, five hundred eighty-seven million, six hundred fifty-four thousand, three hundred thirteen".