212403472777 has 8 divisors (see below), whose sum is σ = 221933548800. Its totient is φ = 202897992000.

The previous prime is 212403472751. The next prime is 212403472789. The reversal of 212403472777 is 777274304212.

212403472777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212403472777 - 2¹¹ = 212403470729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212403472727) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6131152 + ... + 6165697.

It is an arithmetic number, because the mean of its divisors is an integer number (27741693600).

Almost surely, 2^212403472777 is an apocalyptic number.

It is an amenable number.

212403472777 is a deficient number, since it is larger than the sum of its proper divisors (9530076023).

212403472777 is a wasteful number, since it uses less digits than its factorization.

212403472777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12297623.

The product of its (nonzero) digits is 921984, while the sum is 46.

Adding to 212403472777 its reverse (777274304212), we get a palindrome (989677776989).

The spelling of 212403472777 in words is "two hundred twelve billion, four hundred three million, four hundred seventy-two thousand, seven hundred seventy-seven".