68023315089757 has 2 divisors, whose sum is σ = 68023315089758. Its totient is φ = 68023315089756.

The previous prime is 68023315089703. The next prime is 68023315089827. The reversal of 68023315089757 is 75798051332086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63121213552996 + 4902101536761 = 7944886^2 + 2214069^2 .

It is a cyclic number.

It is not a de Polignac number, because 68023315089757 - 2¹¹ = 68023315087709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68023315089557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34011657544878 + 34011657544879.

It is an arithmetic number, because the mean of its divisors is an integer number (34011657544879).

Almost surely, 2^{68023315089757} is an apocalyptic number.

It is an amenable number.

68023315089757 is a deficient number, since it is larger than the sum of its proper divisors (1).

68023315089757 is an equidigital number, since it uses as much as digits as its factorization.

68023315089757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76204800, while the sum is 64.

The spelling of 68023315089757 in words is "sixty-eight trillion, twenty-three billion, three hundred fifteen million, eighty-nine thousand, seven hundred fifty-seven".