212954710393 has 4 divisors (see below), whose sum is σ = 213420694900. Its totient is φ = 212488725888.

The previous prime is 212954710363. The next prime is 212954710421. The reversal of 212954710393 is 393017459212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204496597369 + 8458113024 = 452213^2 + 91968^2 .

It is a cyclic number.

It is not a de Polignac number, because 212954710393 - 2²¹ = 212952613241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212954710303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232991568 + ... + 232992481.

It is an arithmetic number, because the mean of its divisors is an integer number (53355173725).

Almost surely, 2^212954710393 is an apocalyptic number.

It is an amenable number.

212954710393 is a deficient number, since it is larger than the sum of its proper divisors (465984507).

212954710393 is an equidigital number, since it uses as much as digits as its factorization.

212954710393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465984506.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 212954710393 in words is "two hundred twelve billion, nine hundred fifty-four million, seven hundred ten thousand, three hundred ninety-three".