865460278973 has 2 divisors, whose sum is σ = 865460278974. Its totient is φ = 865460278972.

The previous prime is 865460278939. The next prime is 865460279023. The reversal of 865460278973 is 379872064568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 631012575769 + 234447703204 = 794363^2 + 484198^2 .

It is a cyclic number.

It is not a de Polignac number, because 865460278973 - 2⁶ = 865460278909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (865460278673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432730139486 + 432730139487.

It is an arithmetic number, because the mean of its divisors is an integer number (432730139487).

Almost surely, 2^865460278973 is an apocalyptic number.

It is an amenable number.

865460278973 is a deficient number, since it is larger than the sum of its proper divisors (1).

865460278973 is an equidigital number, since it uses as much as digits as its factorization.

865460278973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121927680, while the sum is 65.

The spelling of 865460278973 in words is "eight hundred sixty-five billion, four hundred sixty million, two hundred seventy-eight thousand, nine hundred seventy-three".