68375762453 has 2 divisors, whose sum is σ = 68375762454. Its totient is φ = 68375762452.

The previous prime is 68375762449. The next prime is 68375762491. The reversal of 68375762453 is 35426757386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63870936529 + 4504825924 = 252727^2 + 67118^2 .

It is a cyclic number.

It is not a de Polignac number, because 68375762453 - 2² = 68375762449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68375762753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34187881226 + 34187881227.

It is an arithmetic number, because the mean of its divisors is an integer number (34187881227).

Almost surely, 2^68375762453 is an apocalyptic number.

It is an amenable number.

68375762453 is a deficient number, since it is larger than the sum of its proper divisors (1).

68375762453 is an equidigital number, since it uses as much as digits as its factorization.

68375762453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25401600, while the sum is 56.

The spelling of 68375762453 in words is "sixty-eight billion, three hundred seventy-five million, seven hundred sixty-two thousand, four hundred fifty-three".