216284973983 has 16 divisors (see below), whose sum is σ = 245780256960. Its totient is φ = 188821611264.

The previous prime is 216284973941. The next prime is 216284973997. The reversal of 216284973983 is 389379482612.

It is not a de Polignac number, because 216284973983 - 2³⁴ = 199105104799 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 (216284973383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4037216 + ... + 4090437.

It is an arithmetic number, because the mean of its divisors is an integer number (15361266060).

Almost surely, 2^216284973983 is an apocalyptic number.

216284973983 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

216284973983 is a deficient number, since it is larger than the sum of its proper divisors (29495282977).

216284973983 is a wasteful number, since it uses less digits than its factorization.

216284973983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127778.

The product of its digits is 31352832, while the sum is 62.

The spelling of 216284973983 in words is "two hundred sixteen billion, two hundred eighty-four million, nine hundred seventy-three thousand, nine hundred eighty-three".