609128770 has 8 divisors (see below), whose sum is σ = 1096431804. Its totient is φ = 243651504.

The previous prime is 609128761. The next prime is 609128791. The reversal of 609128770 is 77821906.

It can be written as a sum of positive squares in 2 ways, for example, as 511257321 + 97871449 = 22611^2 + 9893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30456429 + ... + 30456448.

Almost surely, 2^609128770 is an apocalyptic number.

609128770 is a deficient number, since it is larger than the sum of its proper divisors (487303034).

609128770 is a wasteful number, since it uses less digits than its factorization.

609128770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60912884.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 609128770 is about 24680.5342324675. The cubic root of 609128770 is about 847.6886548749.

The spelling of 609128770 in words is "six hundred nine million, one hundred twenty-eight thousand, seven hundred seventy".