609256741402 has 16 divisors (see below), whose sum is σ = 936894738024. Its totient is φ = 296969920000.

The previous prime is 609256741381. The next prime is 609256741403. The reversal of 609256741402 is 204147652906.

It is a Cunningham number, because it is equal to 780549²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 40425525721 + 568831215681 = 201061^2 + 754209^2 .

It is not an unprimeable number, because it can be changed into a prime (609256741403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2748799 + ... + 2962162.

Almost surely, 2^609256741402 is an apocalyptic number.

609256741402 is a deficient number, since it is larger than the sum of its proper divisors (327637996622).

609256741402 is a wasteful number, since it uses less digits than its factorization.

609256741402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712305.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 609256741402 in words is "six hundred nine billion, two hundred fifty-six million, seven hundred forty-one thousand, four hundred two".