216773657475 has 24 divisors (see below), whose sum is σ = 358414498992. Its totient is φ = 115607654400.

The previous prime is 216773657449. The next prime is 216773657501. The reversal of 216773657475 is 574756377612.

216773657475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216773657449) and next prime (216773657501).

It is not a de Polignac number, because 216773657475 - 2²¹ = 216771560323 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2284579 + ... + 2377571.

It is an arithmetic number, because the mean of its divisors is an integer number (14933937458).

Almost surely, 2^216773657475 is an apocalyptic number.

216773657475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

216773657475 is a deficient number, since it is larger than the sum of its proper divisors (141640841517).

216773657475 is a wasteful number, since it uses less digits than its factorization.

216773657475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124087 (or 124082 counting only the distinct ones).

The product of its digits is 51861600, while the sum is 60.

The spelling of 216773657475 in words is "two hundred sixteen billion, seven hundred seventy-three million, six hundred fifty-seven thousand, four hundred seventy-five".