3739787425609 has 9 divisors (see below), whose sum is σ = 3745235275509. Its totient is φ = 3734347497120.

The previous prime is 3739787425607. The next prime is 3739787425637. The reversal of 3739787425609 is 9065247879373.

The square root of 3739787425609 is 1933853.

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

It can be written as a sum of positive squares in 4 ways, for example, as 320350340025 + 3419437085584 = 565995^2 + 1849172^2 .

It is not a de Polignac number, because 3739787425609 - 2¹ = 3739787425607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3739787425607) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2307085819 + ... + 2307087439.

Almost surely, 2^{3739787425609} is an apocalyptic number.

3739787425609 is the 1933853-rd square number.

3739787425609 is the 966927-th centered octagonal number.

It is an amenable number.

3739787425609 is a deficient number, since it is larger than the sum of its proper divisors (5447849900).

3739787425609 is an frugal number, since it uses more digits than its factorization.

3739787425609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5628 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 480090240, while the sum is 70.

The spelling of 3739787425609 in words is "three trillion, seven hundred thirty-nine billion, seven hundred eighty-seven million, four hundred twenty-five thousand, six hundred nine".