855469247063 has 2 divisors, whose sum is σ = 855469247064. Its totient is φ = 855469247062.

The previous prime is 855469246997. The next prime is 855469247077. The reversal of 855469247063 is 360742964558.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855469247063 is a prime.

It is a super-2 number, since 2×855469247063² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 855469246993 and 855469247011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855469247663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427734623531 + 427734623532.

It is an arithmetic number, because the mean of its divisors is an integer number (427734623532).

Almost surely, 2^855469247063 is an apocalyptic number.

855469247063 is a deficient number, since it is larger than the sum of its proper divisors (1).

855469247063 is an equidigital number, since it uses as much as digits as its factorization.

855469247063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43545600, while the sum is 59.

The spelling of 855469247063 in words is "eight hundred fifty-five billion, four hundred sixty-nine million, two hundred forty-seven thousand, sixty-three".