216327463249 has 8 divisors (see below), whose sum is σ = 229438879560. Its totient is φ = 203258966016.

The previous prime is 216327463237. The next prime is 216327463273. The reversal of 216327463249 is 942364723612.

It can be written as a sum of positive squares in 4 ways, for example, as 22322451649 + 194005011600 = 149407^2 + 440460^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 216327463249 - 2⁹ = 216327462737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216327460249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10719384 + ... + 10739545.

It is an arithmetic number, because the mean of its divisors is an integer number (28679859945).

Almost surely, 2^216327463249 is an apocalyptic number.

It is an amenable number.

216327463249 is a deficient number, since it is larger than the sum of its proper divisors (13111416311).

216327463249 is a wasteful number, since it uses less digits than its factorization.

216327463249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21459539.

The product of its digits is 2612736, while the sum is 49.

The spelling of 216327463249 in words is "two hundred sixteen billion, three hundred twenty-seven million, four hundred sixty-three thousand, two hundred forty-nine".