3509041538 has 6 divisors (see below), whose sum is σ = 5263687971. Its totient is φ = 1754478882.

The previous prime is 3509041511. The next prime is 3509041561. The reversal of 3509041538 is 8351409053.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1754520769 + 1754520769 = 41887^2 + 41887^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=41887.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 62831 + ... + 104717.

Almost surely, 2^3509041538 is an apocalyptic number.

3509041538 is a deficient number, since it is larger than the sum of its proper divisors (1754646433).

3509041538 is an frugal number, since it uses more digits than its factorization.

3509041538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83776 (or 41889 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 3509041538 is about 59237.1634871218. The cubic root of 3509041538 is about 1519.6007633953.

Multiplying 3509041538 by its product of nonzero digits (64800), we get a square (227385891662400 = 15079320²).

The spelling of 3509041538 in words is "three billion, five hundred nine million, forty-one thousand, five hundred thirty-eight".