8421210063 has 32 divisors (see below), whose sum is σ = 14396595200. Its totient is φ = 4765389408.

The previous prime is 8421210043. The next prime is 8421210067. The reversal of 8421210063 is 3600121248.

It is not a de Polignac number, because 8421210063 - 2¹⁰ = 8421209039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8421210067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196828 + ... + 235761.

It is an arithmetic number, because the mean of its divisors is an integer number (449893600).

Almost surely, 2^8421210063 is an apocalyptic number.

8421210063 is a deficient number, since it is larger than the sum of its proper divisors (5975385137).

8421210063 is a wasteful number, since it uses less digits than its factorization.

8421210063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432708 (or 432702 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8421210063 is about 91767.1513287843. The cubic root of 8421210063 is about 2034.5022145511.

The spelling of 8421210063 in words is "eight billion, four hundred twenty-one million, two hundred ten thousand, sixty-three".