216028684741 has 4 divisors (see below), whose sum is σ = 216149846752. Its totient is φ = 215907522732.

The previous prime is 216028684717. The next prime is 216028684757. The reversal of 216028684741 is 147486820612.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216028684741 - 2¹⁷ = 216028553669 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 (216028604741) 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, 60578331 + ... + 60581896.

It is an arithmetic number, because the mean of its divisors is an integer number (54037461688).

Almost surely, 2^216028684741 is an apocalyptic number.

It is an amenable number.

216028684741 is a deficient number, since it is larger than the sum of its proper divisors (121162011).

216028684741 is a wasteful number, since it uses less digits than its factorization.

216028684741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121162010.

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 216028684741 in words is "two hundred sixteen billion, twenty-eight million, six hundred eighty-four thousand, seven hundred forty-one".