61362561413563 has 2 divisors, whose sum is σ = 61362561413564. Its totient is φ = 61362561413562.

The previous prime is 61362561413519. The next prime is 61362561413651. The reversal of 61362561413563 is 36531416526316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61362561413563 - 2⁹ = 61362561413051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61362561413563.

It is not a weakly prime, because it can be changed into another prime (61362561411563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30681280706781 + 30681280706782.

It is an arithmetic number, because the mean of its divisors is an integer number (30681280706782).

Almost surely, 2^{61362561413563} is an apocalyptic number.

61362561413563 is a deficient number, since it is larger than the sum of its proper divisors (1).

61362561413563 is an equidigital number, since it uses as much as digits as its factorization.

61362561413563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6998400, while the sum is 52.

Adding to 61362561413563 its reverse (36531416526316), we get a palindrome (97893977939879).

The spelling of 61362561413563 in words is "sixty-one trillion, three hundred sixty-two billion, five hundred sixty-one million, four hundred thirteen thousand, five hundred sixty-three".