3487754207809 has 3 divisors (see below), whose sum is σ = 3487756075363. Its totient is φ = 3487752340256.

The previous prime is 3487754207741. The next prime is 3487754207813. The reversal of 3487754207809 is 9087024577843.

The square root of 3487754207809 is 1867553.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2334982644225 + 1152771563584 = 1528065^2 + 1073672^2 .

It is not a de Polignac number, because 3487754207809 - 2⁹ = 3487754207297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3487754207869) 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 2 ways as a sum of consecutive naturals, for example, 933777 + ... + 2801329.

Almost surely, 2^{3487754207809} is an apocalyptic number.

3487754207809 is the 1867553-rd square number.

3487754207809 is the 933777-th centered octagonal number.

It is an amenable number.

3487754207809 is a deficient number, since it is larger than the sum of its proper divisors (1867554).

3487754207809 is an frugal number, since it uses more digits than its factorization.

3487754207809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735106 (or 1867553 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 64.

Multiplying 3487754207809 by its sum of digits (64), we get a square (223216269299776 = 14940424²).

The spelling of 3487754207809 in words is "three trillion, four hundred eighty-seven billion, seven hundred fifty-four million, two hundred seven thousand, eight hundred nine".