211147054954 has 24 divisors (see below), whose sum is σ = 346004743392. Its totient is φ = 95839632720.

The previous prime is 211147054903. The next prime is 211147054969. The reversal of 211147054954 is 459450741112.

211147054954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 211147054954.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11811427 + ... + 11829289.

It is an arithmetic number, because the mean of its divisors is an integer number (14416864308).

Almost surely, 2^211147054954 is an apocalyptic number.

211147054954 is a deficient number, since it is larger than the sum of its proper divisors (134857688438).

211147054954 is an equidigital number, since it uses as much as digits as its factorization.

211147054954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19342 (or 18609 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 211147054954 in words is "two hundred eleven billion, one hundred forty-seven million, fifty-four thousand, nine hundred fifty-four".