68365516265287 has 2 divisors, whose sum is σ = 68365516265288. Its totient is φ = 68365516265286.

The previous prime is 68365516265147. The next prime is 68365516265309. The reversal of 68365516265287 is 78256261556386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68365516265287 - 2²⁷ = 68365382047559 is a prime.

It is a super-2 number, since 2×68365516265287² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68365516265587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34182758132643 + 34182758132644.

It is an arithmetic number, because the mean of its divisors is an integer number (34182758132644).

Almost surely, 2^{68365516265287} is an apocalyptic number.

68365516265287 is a deficient number, since it is larger than the sum of its proper divisors (1).

68365516265287 is an equidigital number, since it uses as much as digits as its factorization.

68365516265287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912000, while the sum is 70.

The spelling of 68365516265287 in words is "sixty-eight trillion, three hundred sixty-five billion, five hundred sixteen million, two hundred sixty-five thousand, two hundred eighty-seven".