339768912609 has 81 divisors (see below), whose sum is σ = 586033974201. Its totient is φ = 189138418560.

The previous prime is 339768912607. The next prime is 339768912643. The reversal of 339768912609 is 906219867933.

The square root of 339768912609 is 582897.

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

339768912609 is a `hidden beast` number, since 3 + 3 + 9 + 7 + 6 + 8 + 9 + 12 + 609 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7038371025 + 332730541584 = 83895^2 + 576828^2 .

It is not a de Polignac number, because 339768912609 - 2¹ = 339768912607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (339768912607) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 501873979 + ... + 501874655.

Almost surely, 2^339768912609 is an apocalyptic number.

339768912609 is the 582897-th square number.

339768912609 is the 291449-th centered octagonal number.

It is an amenable number.

339768912609 is a deficient number, since it is larger than the sum of its proper divisors (246265061592).

339768912609 is an frugal number, since it uses more digits than its factorization.

339768912609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 63.

The spelling of 339768912609 in words is "three hundred thirty-nine billion, seven hundred sixty-eight million, nine hundred twelve thousand, six hundred nine".