216473886743 has 2 divisors, whose sum is σ = 216473886744. Its totient is φ = 216473886742.

The previous prime is 216473886667. The next prime is 216473886751. The reversal of 216473886743 is 347688374612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216473886743 - 2⁸ = 216473886487 is a prime.

It is a super-2 number, since 2×216473886743² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216473886043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108236943371 + 108236943372.

It is an arithmetic number, because the mean of its divisors is an integer number (108236943372).

Almost surely, 2^216473886743 is an apocalyptic number.

216473886743 is a deficient number, since it is larger than the sum of its proper divisors (1).

216473886743 is an equidigital number, since it uses as much as digits as its factorization.

216473886743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32514048, while the sum is 59.

The spelling of 216473886743 in words is "two hundred sixteen billion, four hundred seventy-three million, eight hundred eighty-six thousand, seven hundred forty-three".