216514487813 has 16 divisors (see below), whose sum is σ = 238411157376. Its totient is φ = 195405877440.

The previous prime is 216514487753. The next prime is 216514487851. The reversal of 216514487813 is 318784415612.

It is not a de Polignac number, because 216514487813 - 2¹⁴ = 216514471429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216514487863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685031 + ... + 949892.

It is an arithmetic number, because the mean of its divisors is an integer number (14900697336).

Almost surely, 2^216514487813 is an apocalyptic number.

It is an amenable number.

216514487813 is a deficient number, since it is larger than the sum of its proper divisors (21896669563).

216514487813 is a wasteful number, since it uses less digits than its factorization.

216514487813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635164.

The product of its digits is 1290240, while the sum is 50.

The spelling of 216514487813 in words is "two hundred sixteen billion, five hundred fourteen million, four hundred eighty-seven thousand, eight hundred thirteen".