211946061376 has 63 divisors (see below), whose sum is σ = 489306183057. Its totient is φ = 90822977280.

The previous prime is 211946061347. The next prime is 211946061419. The reversal of 211946061376 is 673160649112.

The square root of 211946061376 is 460376.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 199651686976 + 12294374400 = 446824^2 + 110880^2 .

It is a super-2 number, since 2×211946061376² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 25776946 + ... + 25785166.

Almost surely, 2^211946061376 is an apocalyptic number.

211946061376 is the 460376-th square number.

It is an amenable number.

211946061376 is an abundant number, since it is smaller than the sum of its proper divisors (277360121681).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211946061376 is an frugal number, since it uses more digits than its factorization.

211946061376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16468 (or 8230 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 211946061376 in words is "two hundred eleven billion, nine hundred forty-six million, sixty-one thousand, three hundred seventy-six".