3561511042 has 16 divisors (see below), whose sum is σ = 5422447800. Its totient is φ = 1754177920.

The previous prime is 3561511007. The next prime is 3561511081. The reversal of 3561511042 is 2401151653.

It can be written as a sum of positive squares in 4 ways, for example, as 1586508561 + 1975002481 = 39831^2 + 44441^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3561511042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10692 + ... + 85072.

Almost surely, 2^3561511042 is an apocalyptic number.

3561511042 is a deficient number, since it is larger than the sum of its proper divisors (1860936758).

3561511042 is a wasteful number, since it uses less digits than its factorization.

3561511042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74741.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 3561511042 is about 59678.3967780637. The cubic root of 3561511042 is about 1527.1373476620.

Adding to 3561511042 its reverse (2401151653), we get a palindrome (5962662695).

The spelling of 3561511042 in words is "three billion, five hundred sixty-one million, five hundred eleven thousand, forty-two".