211027189390 has 32 divisors (see below), whose sum is σ = 392855028480. Its totient is φ = 81531091200.

The previous prime is 211027189291. The next prime is 211027189391. The reversal of 211027189390 is 93981720112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211027189391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491785 + ... + 814804.

It is an arithmetic number, because the mean of its divisors is an integer number (12276719640).

Almost surely, 2^211027189390 is an apocalyptic number.

211027189390 is a deficient number, since it is larger than the sum of its proper divisors (181827839090).

211027189390 is a wasteful number, since it uses less digits than its factorization.

211027189390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307148.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 211027189390 in words is "two hundred eleven billion, twenty-seven million, one hundred eighty-nine thousand, three hundred ninety".