212761053556013 has 8 divisors (see below), whose sum is σ = 214868183597976. Its totient is φ = 210653934984000.

The previous prime is 212761053555871. The next prime is 212761053556043. The reversal of 212761053556013 is 310655350167212.

It can be written as a sum of positive squares in 4 ways, for example, as 96165912442084 + 116595141113929 = 9806422^2 + 10797923^2 .

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 212761053556013 - 2⁴⁶ = 142392309378349 is a prime.

It is a super-3 number, since 3×212761053556013³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212761053556043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37169543 + ... + 42509963.

It is an arithmetic number, because the mean of its divisors is an integer number (26858522949747).

Almost surely, 2^{212761053556013} is an apocalyptic number.

It is an amenable number.

212761053556013 is a deficient number, since it is larger than the sum of its proper divisors (2107130041963).

212761053556013 is a wasteful number, since it uses less digits than its factorization.

212761053556013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734975.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 212761053556013 in words is "two hundred twelve trillion, seven hundred sixty-one billion, fifty-three million, five hundred fifty-six thousand, thirteen".