3561622331 has 16 divisors (see below), whose sum is σ = 3719128704. Its totient is φ = 3407629824.

The previous prime is 3561622279. The next prime is 3561622343. The reversal of 3561622331 is 1332261653.

It is a cyclic number.

It is not a de Polignac number, because 3561622331 - 2²² = 3557428027 is a prime.

It is a super-2 number, since 2×3561622331² = 25370307257355747122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3561622231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 989471 + ... + 993063.

It is an arithmetic number, because the mean of its divisors is an integer number (232445544).

Almost surely, 2^3561622331 is an apocalyptic number.

3561622331 is a deficient number, since it is larger than the sum of its proper divisors (157506373).

3561622331 is a wasteful number, since it uses less digits than its factorization.

3561622331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070.

The product of its digits is 19440, while the sum is 32.

The square root of 3561622331 is about 59679.3291768599. The cubic root of 3561622331 is about 1527.1532540021.

Adding to 3561622331 its reverse (1332261653), we get a palindrome (4893883984).

The spelling of 3561622331 in words is "three billion, five hundred sixty-one million, six hundred twenty-two thousand, three hundred thirty-one".