561135676 has 24 divisors (see below), whose sum is σ = 1008274176. Its totient is φ = 273089280.

The previous prime is 561135671. The next prime is 561135719. The reversal of 561135676 is 676531165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561135671) by changing a digit.

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, 71205 + ... + 78691.

It is an arithmetic number, because the mean of its divisors is an integer number (42011424).

Almost surely, 2^561135676 is an apocalyptic number.

It is an amenable number.

561135676 is a deficient number, since it is larger than the sum of its proper divisors (447138500).

561135676 is a wasteful number, since it uses less digits than its factorization.

561135676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7989 (or 7987 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The square root of 561135676 is about 23688.3025141102. The cubic root of 561135676 is about 824.8138795325.

The spelling of 561135676 in words is "five hundred sixty-one million, one hundred thirty-five thousand, six hundred seventy-six".