607780837609 has 45 divisors (see below), whose sum is σ = 712073668935. Its totient is φ = 518654283840.

The previous prime is 607780837523. The next prime is 607780837613. The reversal of 607780837609 is 906738087706.

The square root of 607780837609 is 779603.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 473185773225 + 134595064384 = 687885^2 + 366872^2 .

It is not a de Polignac number, because 607780837609 - 2¹⁷ = 607780706537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (607780837669) 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 44 ways as a sum of consecutive naturals, for example, 1603643182 + ... + 1603643560.

Almost surely, 2^607780837609 is an apocalyptic number.

607780837609 is the 779603-rd square number.

607780837609 is the 389802-nd centered octagonal number.

It is an amenable number.

607780837609 is a deficient number, since it is larger than the sum of its proper divisors (104292831326).

607780837609 is an frugal number, since it uses more digits than its factorization.

607780837609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 61.

The spelling of 607780837609 in words is "six hundred seven billion, seven hundred eighty million, eight hundred thirty-seven thousand, six hundred nine".