215489984512 has 48 divisors (see below), whose sum is σ = 470045230200. Its totient is φ = 97949982720.

The previous prime is 215489984491. The next prime is 215489984519.

215489984512 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215489984519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4760187 + ... + 4805242.

Almost surely, 2^215489984512 is an apocalyptic number.

215489984512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215489984512 is an abundant number, since it is smaller than the sum of its proper divisors (254555245688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215489984512 is an equidigital number, since it uses as much as digits as its factorization.

215489984512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9565462 (or 9565442 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 58.

The spelling of 215489984512 in words is "two hundred fifteen billion, four hundred eighty-nine million, nine hundred eighty-four thousand, five hundred twelve".