68253450635673 has 10 divisors (see below), whose sum is σ = 101958858357114. Its totient is φ = 45502300423728.

The previous prime is 68253450635641. The next prime is 68253450635707. The reversal of 68253450635673 is 37653605435286.

68253450635673 is a `hidden beast` number, since 6 + 8 + 2 + 5 + 3 + 4 + 5 + 0 + 63 + 567 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65364120396864 + 2889330238809 = 8084808^2 + 1699803^2 .

It is not a de Polignac number, because 68253450635673 - 2⁵ = 68253450635641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68253450635673.

It is not an unprimeable number, because it can be changed into a prime (68253450615673) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 421317596436 + ... + 421317596597.

Almost surely, 2^{68253450635673} is an apocalyptic number.

It is an amenable number.

68253450635673 is a deficient number, since it is larger than the sum of its proper divisors (33705407721441).

68253450635673 is an equidigital number, since it uses as much as digits as its factorization.

68253450635673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842635193045 (or 842635193036 counting only the distinct ones).

The product of its (nonzero) digits is 326592000, while the sum is 63.

The spelling of 68253450635673 in words is "sixty-eight trillion, two hundred fifty-three billion, four hundred fifty million, six hundred thirty-five thousand, six hundred seventy-three".