3518738042261 has 32 divisors (see below), whose sum is σ = 3865333040352. Its totient is φ = 3183384821760.

The previous prime is 3518738042249. The next prime is 3518738042263. The reversal of 3518738042261 is 1622408378153.

It can be written as a sum of positive squares in 16 ways, for example, as 995345428900 + 2523392613361 = 997670^2 + 1588519^2 .

It is not a de Polignac number, because 3518738042261 - 2³⁸ = 3243860135317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3518738042263) 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 31 ways as a sum of consecutive naturals, for example, 451521581 + ... + 451529373.

It is an arithmetic number, because the mean of its divisors is an integer number (120791657511).

Almost surely, 2^{3518738042261} is an apocalyptic number.

It is an amenable number.

3518738042261 is a deficient number, since it is larger than the sum of its proper divisors (346594998091).

3518738042261 is a wasteful number, since it uses less digits than its factorization.

3518738042261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9833.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 3518738042261 in words is "three trillion, five hundred eighteen billion, seven hundred thirty-eight million, forty-two thousand, two hundred sixty-one".