868912045073 has 2 divisors, whose sum is σ = 868912045074. Its totient is φ = 868912045072.

The previous prime is 868912045051. The next prime is 868912045091. The reversal of 868912045073 is 370540219868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 587442536704 + 281469508369 = 766448^2 + 530537^2 .

It is a cyclic number.

It is not a de Polignac number, because 868912045073 - 2³² = 864617077777 is a prime.

It is not a weakly prime, because it can be changed into another prime (868912045873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434456022536 + 434456022537.

It is an arithmetic number, because the mean of its divisors is an integer number (434456022537).

It is a 1-persistent number, because it is pandigital, but 2⋅868912045073 = 1737824090146 is not.

Almost surely, 2^868912045073 is an apocalyptic number.

It is an amenable number.

868912045073 is a deficient number, since it is larger than the sum of its proper divisors (1).

868912045073 is an equidigital number, since it uses as much as digits as its factorization.

868912045073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 868912045073 in words is "eight hundred sixty-eight billion, nine hundred twelve million, forty-five thousand, seventy-three".