561135259674 has 48 divisors (see below), whose sum is σ = 1328044798080. Its totient is φ = 169819822080.

The previous prime is 561135259651. The next prime is 561135259693. The reversal of 561135259674 is 476952531165.

561135259674 is a `hidden beast` number, since 5 + 6 + 11 + 35 + 2 + 596 + 7 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 561135259674.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1690402 + ... + 1994925.

It is an arithmetic number, because the mean of its divisors is an integer number (27667599960).

Almost surely, 2^561135259674 is an apocalyptic number.

561135259674 is an abundant number, since it is smaller than the sum of its proper divisors (766909538406).

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

561135259674 is a wasteful number, since it uses less digits than its factorization.

561135259674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686115 (or 3686112 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The spelling of 561135259674 in words is "five hundred sixty-one billion, one hundred thirty-five million, two hundred fifty-nine thousand, six hundred seventy-four".