3561366737 has 8 divisors (see below), whose sum is σ = 3809735496. Its totient is φ = 3317317632.

The previous prime is 3561366691. The next prime is 3561366749. The reversal of 3561366737 is 7376631653.

It can be written as a sum of positive squares in 4 ways, for example, as 1749246976 + 1812119761 = 41824^2 + 42569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3561366737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3561366691 and 3561366700.

It is not an unprimeable number, because it can be changed into a prime (3561366337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078208 + ... + 1081505.

It is an arithmetic number, because the mean of its divisors is an integer number (476216937).

Almost surely, 2^3561366737 is an apocalyptic number.

It is an amenable number.

3561366737 is a deficient number, since it is larger than the sum of its proper divisors (248368759).

3561366737 is a wasteful number, since it uses less digits than its factorization.

3561366737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159827.

The product of its digits is 1428840, while the sum is 47.

The square root of 3561366737 is about 59677.1877437267. The cubic root of 3561366737 is about 1527.1167219099.

The spelling of 3561366737 in words is "three billion, five hundred sixty-one million, three hundred sixty-six thousand, seven hundred thirty-seven".