8215220463 has 8 divisors (see below), whose sum is σ = 10954806576. Its totient is φ = 5476224000.

The previous prime is 8215220423. The next prime is 8215220467. The reversal of 8215220463 is 3640225128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8215220463 - 2¹⁸ = 8214958319 is a prime.

It is a super-3 number, since 3×8215220463³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8215220467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113808 + ... + 171413.

It is an arithmetic number, because the mean of its divisors is an integer number (1369350822).

Almost surely, 2^8215220463 is an apocalyptic number.

8215220463 is a deficient number, since it is larger than the sum of its proper divisors (2739586113).

8215220463 is a wasteful number, since it uses less digits than its factorization.

8215220463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294825.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 8215220463 is about 90637.8533671225. The cubic root of 8215220463 is about 2017.7765672854.

The spelling of 8215220463 in words is "eight billion, two hundred fifteen million, two hundred twenty thousand, four hundred sixty-three".