561976753678 has 8 divisors (see below), whose sum is σ = 842999090472. Its totient is φ = 280977056856.

The previous prime is 561976753669. The next prime is 561976753699. The reversal of 561976753678 is 876357679165.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5597800 + ... + 5697307.

It is an arithmetic number, because the mean of its divisors is an integer number (105374886309).

Almost surely, 2^561976753678 is an apocalyptic number.

561976753678 is a deficient number, since it is larger than the sum of its proper divisors (281022336794).

561976753678 is a wasteful number, since it uses less digits than its factorization.

561976753678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11319986.

The product of its digits is 400075200, while the sum is 70.

The spelling of 561976753678 in words is "five hundred sixty-one billion, nine hundred seventy-six million, seven hundred fifty-three thousand, six hundred seventy-eight".