211990709413 has 16 divisors (see below), whose sum is σ = 246145951744. Its totient is φ = 178808802480.

The previous prime is 211990709377. The next prime is 211990709429. The reversal of 211990709413 is 314907099112.

It is not a de Polignac number, because 211990709413 - 2²⁹ = 211453838501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211990709813) 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 15 ways as a sum of consecutive naturals, for example, 219808 + ... + 687238.

It is an arithmetic number, because the mean of its divisors is an integer number (15384121984).

Almost surely, 2^211990709413 is an apocalyptic number.

It is an amenable number.

211990709413 is a deficient number, since it is larger than the sum of its proper divisors (34155242331).

211990709413 is an equidigital number, since it uses as much as digits as its factorization.

211990709413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468472.

The product of its (nonzero) digits is 122472, while the sum is 46.

It can be divided in two parts, 211990 and 709413, that added together give a triangular number (921403 = T₁₃₅₇).

The spelling of 211990709413 in words is "two hundred eleven billion, nine hundred ninety million, seven hundred nine thousand, four hundred thirteen".