3561081836 has 48 divisors (see below), whose sum is σ = 6808475520. Its totient is φ = 1619923200.

The previous prime is 3561081803. The next prime is 3561081847. The reversal of 3561081836 is 6381801653.

3561081836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3561081793 and 3561081802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1253810 + ... + 1256646.

It is an arithmetic number, because the mean of its divisors is an integer number (141843240).

Almost surely, 2^3561081836 is an apocalyptic number.

It is an amenable number.

3561081836 is a deficient number, since it is larger than the sum of its proper divisors (3247393684).

3561081836 is a wasteful number, since it uses less digits than its factorization.

3561081836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194 (or 3192 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 3561081836 is about 59674.8006783433. The cubic root of 3561081836 is about 1527.0759989033.

The spelling of 3561081836 in words is "three billion, five hundred sixty-one million, eighty-one thousand, eight hundred thirty-six".