561117277783 has 8 divisors (see below), whose sum is σ = 580383681696. Its totient is φ = 542116617600.

The previous prime is 561117277741. The next prime is 561117277789. The reversal of 561117277783 is 387772711165.

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

It is a cyclic number.

It is not a de Polignac number, because 561117277783 - 2¹³ = 561117269591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561117277789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66431638 + ... + 66440083.

It is an arithmetic number, because the mean of its divisors is an integer number (72547960212).

Almost surely, 2^561117277783 is an apocalyptic number.

561117277783 is a deficient number, since it is larger than the sum of its proper divisors (19266403913).

561117277783 is a wasteful number, since it uses less digits than its factorization.

561117277783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132871865.

The product of its digits is 3457440, while the sum is 55.

The spelling of 561117277783 in words is "five hundred sixty-one billion, one hundred seventeen million, two hundred seventy-seven thousand, seven hundred eighty-three".