561728333945 has 8 divisors (see below), whose sum is σ = 709551579840. Its totient is φ = 425730947760.

The previous prime is 561728333927. The next prime is 561728333951. The reversal of 561728333945 is 549333827165.

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

It is not a de Polignac number, because 561728333945 - 2³² = 557433366649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2956464821 + ... + 2956465010.

It is an arithmetic number, because the mean of its divisors is an integer number (88693947480).

Almost surely, 2^561728333945 is an apocalyptic number.

It is an amenable number.

561728333945 is a deficient number, since it is larger than the sum of its proper divisors (147823245895).

561728333945 is a wasteful number, since it uses less digits than its factorization.

561728333945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912929855.

The product of its digits is 16329600, while the sum is 56.

The spelling of 561728333945 in words is "five hundred sixty-one billion, seven hundred twenty-eight million, three hundred thirty-three thousand, nine hundred forty-five".