611627328289 has 4 divisors (see below), whose sum is σ = 611670539520. Its totient is φ = 611584117060.

The previous prime is 611627328271. The next prime is 611627328343. The reversal of 611627328289 is 982823726116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 611627328289 - 2¹⁹ = 611626804001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611627328269) 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 3 ways as a sum of consecutive naturals, for example, 21584377 + ... + 21612694.

It is an arithmetic number, because the mean of its divisors is an integer number (152917634880).

Almost surely, 2^611627328289 is an apocalyptic number.

It is an amenable number.

611627328289 is a deficient number, since it is larger than the sum of its proper divisors (43211231).

611627328289 is a wasteful number, since it uses less digits than its factorization.

611627328289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43211230.

The product of its digits is 3483648, while the sum is 55.

The spelling of 611627328289 in words is "six hundred eleven billion, six hundred twenty-seven million, three hundred twenty-eight thousand, two hundred eighty-nine".