561722839499 has 8 divisors (see below), whose sum is σ = 563981784768. Its totient is φ = 559465557120.

The previous prime is 561722839477. The next prime is 561722839529. The reversal of 561722839499 is 994938227165.

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 561722839499 - 2³² = 557427872203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561722839409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263459 + ... + 1092179.

It is an arithmetic number, because the mean of its divisors is an integer number (70497723096).

Almost surely, 2^561722839499 is an apocalyptic number.

561722839499 is a deficient number, since it is larger than the sum of its proper divisors (2258945269).

561722839499 is a wasteful number, since it uses less digits than its factorization.

561722839499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831445.

The product of its digits is 58786560, while the sum is 65.

The spelling of 561722839499 in words is "five hundred sixty-one billion, seven hundred twenty-two million, eight hundred thirty-nine thousand, four hundred ninety-nine".