211341509457 has 32 divisors (see below), whose sum is σ = 313468087296. Its totient is φ = 125774899200.

The previous prime is 211341509443. The next prime is 211341509459. The reversal of 211341509457 is 754905143112.

211341509457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211341509457 - 2⁷ = 211341509329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211341509459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1731513 + ... + 1849545.

It is an arithmetic number, because the mean of its divisors is an integer number (9795877728).

Almost surely, 2^211341509457 is an apocalyptic number.

It is an amenable number.

211341509457 is a deficient number, since it is larger than the sum of its proper divisors (102126577839).

211341509457 is a wasteful number, since it uses less digits than its factorization.

211341509457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119561.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 211341509457 in words is "two hundred eleven billion, three hundred forty-one million, five hundred nine thousand, four hundred fifty-seven".