211458778713 has 192 divisors, whose sum is σ = 413368012800. Its totient is φ = 104241945600.

The previous prime is 211458778703. The next prime is 211458778717. The reversal of 211458778713 is 317877854112.

It is not a de Polignac number, because 211458778713 - 2¹⁴ = 211458762329 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211458778713.

It is not an unprimeable number, because it can be changed into a prime (211458778717) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 81991258 + ... + 81993836.

It is an arithmetic number, because the mean of its divisors is an integer number (2152958400).

Almost surely, 2^211458778713 is an apocalyptic number.

It is an amenable number.

211458778713 is a deficient number, since it is larger than the sum of its proper divisors (201909234087).

211458778713 is a wasteful number, since it uses less digits than its factorization.

211458778713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789 (or 2770 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 54.

The spelling of 211458778713 in words is "two hundred eleven billion, four hundred fifty-eight million, seven hundred seventy-eight thousand, seven hundred thirteen".