3509856010242 has 28 divisors (see below), whose sum is σ = 7893565063350. Its totient is φ = 1169952002928.

The previous prime is 3509856010237. The next prime is 3509856010249. The reversal of 3509856010242 is 2420106589053.

3509856010242 is a `hidden beast` number, since 3 + 50 + 9 + 8 + 560 + 10 + 24 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3393439252641 + 116416757601 = 1842129^2 + 341199^2 .

It is not an unprimeable number, because it can be changed into a prime (3509856010249) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1203652867 + ... + 1203655782.

Almost surely, 2^{3509856010242} is an apocalyptic number.

3509856010242 is an abundant number, since it is smaller than the sum of its proper divisors (4383709053108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3509856010242 is an equidigital number, since it uses as much as digits as its factorization.

3509856010242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407308669 (or 2407308654 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 3509856010242 in words is "three trillion, five hundred nine billion, eight hundred fifty-six million, ten thousand, two hundred forty-two".