3561558393797 has 32 divisors (see below), whose sum is σ = 3685859328000. Its totient is φ = 3439924899840.

The previous prime is 3561558393773. The next prime is 3561558393893. The reversal of 3561558393797 is 7973938551653.

It is a cyclic number.

It is not a de Polignac number, because 3561558393797 - 2²⁸ = 3561289958341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3561558393797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561552393797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 695750204 + ... + 695755322.

It is an arithmetic number, because the mean of its divisors is an integer number (115183104000).

Almost surely, 2^{3561558393797} is an apocalyptic number.

It is an amenable number.

3561558393797 is a deficient number, since it is larger than the sum of its proper divisors (124300934203).

3561558393797 is a wasteful number, since it uses less digits than its factorization.

3561558393797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021.

The product of its digits is 642978000, while the sum is 71.

The spelling of 3561558393797 in words is "three trillion, five hundred sixty-one billion, five hundred fifty-eight million, three hundred ninety-three thousand, seven hundred ninety-seven".