68712424553 has 2 divisors, whose sum is σ = 68712424554. Its totient is φ = 68712424552.

The previous prime is 68712424531. The next prime is 68712424589. The reversal of 68712424553 is 35542421786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66343850329 + 2368574224 = 257573^2 + 48668^2 .

It is a cyclic number.

It is not a de Polignac number, because 68712424553 - 2¹⁶ = 68712359017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68712424498 and 68712424507.

It is not a weakly prime, because it can be changed into another prime (68712421553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34356212276 + 34356212277.

It is an arithmetic number, because the mean of its divisors is an integer number (34356212277).

Almost surely, 2^68712424553 is an apocalyptic number.

It is an amenable number.

68712424553 is a deficient number, since it is larger than the sum of its proper divisors (1).

68712424553 is an equidigital number, since it uses as much as digits as its factorization.

68712424553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 47.

The spelling of 68712424553 in words is "sixty-eight billion, seven hundred twelve million, four hundred twenty-four thousand, five hundred fifty-three".