212990426713 has 4 divisors (see below), whose sum is σ = 212991593188. Its totient is φ = 212989260240.

The previous prime is 212990426711. The next prime is 212990426743. The reversal of 212990426713 is 317624099212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 35756162649 + 177234264064 = 189093^2 + 420992^2 .

It is a cyclic number.

It is not a de Polignac number, because 212990426713 - 2¹ = 212990426711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212990426711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243306 + ... + 696547.

It is an arithmetic number, because the mean of its divisors is an integer number (53247898297).

Almost surely, 2^212990426713 is an apocalyptic number.

It is an amenable number.

212990426713 is a deficient number, since it is larger than the sum of its proper divisors (1166475).

212990426713 is an equidigital number, since it uses as much as digits as its factorization.

212990426713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166474.

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

The spelling of 212990426713 in words is "two hundred twelve billion, nine hundred ninety million, four hundred twenty-six thousand, seven hundred thirteen".