8215877272 has 32 divisors (see below), whose sum is σ = 15655182480. Its totient is φ = 4041446400.

The previous prime is 8215877239. The next prime is 8215877279. The reversal of 8215877272 is 2727785128.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8215877279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216643 + ... + 251725.

Almost surely, 2^8215877272 is an apocalyptic number.

It is an amenable number.

8215877272 is a deficient number, since it is larger than the sum of its proper divisors (7439305208).

8215877272 is a wasteful number, since it uses less digits than its factorization.

8215877272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35563 (or 35559 counting only the distinct ones).

The product of its digits is 878080, while the sum is 49.

The square root of 8215877272 is about 90641.4765546105. The cubic root of 8215877272 is about 2017.8303397718.

The spelling of 8215877272 in words is "eight billion, two hundred fifteen million, eight hundred seventy-seven thousand, two hundred seventy-two".