3561651654 has 32 divisors (see below), whose sum is σ = 7772993280. Its totient is φ = 1078994400.

The previous prime is 3561651649. The next prime is 3561651661. The reversal of 3561651654 is 4561561653.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 465399 + ... + 472989.

It is an arithmetic number, because the mean of its divisors is an integer number (242906040).

Almost surely, 2^3561651654 is an apocalyptic number.

3561651654 is an abundant number, since it is smaller than the sum of its proper divisors (4211341626).

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

3561651654 is a wasteful number, since it uses less digits than its factorization.

3561651654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14716.

The product of its digits is 324000, while the sum is 42.

The square root of 3561651654 is about 59679.5748476813. The cubic root of 3561651654 is about 1527.1574450316.

Subtracting 3561651654 from its reverse (4561561653), we obtain a palindrome (999909999).

The spelling of 3561651654 in words is "three billion, five hundred sixty-one million, six hundred fifty-one thousand, six hundred fifty-four".