61363226563 has 2 divisors, whose sum is σ = 61363226564. Its totient is φ = 61363226562.

The previous prime is 61363226527. The next prime is 61363226567. The reversal of 61363226563 is 36562236316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61363226563 - 2⁹ = 61363226051 is a prime.

It is not a weakly prime, because it can be changed into another prime (61363226567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30681613281 + 30681613282.

It is an arithmetic number, because the mean of its divisors is an integer number (30681613282).

Almost surely, 2^61363226563 is an apocalyptic number.

61363226563 is a deficient number, since it is larger than the sum of its proper divisors (1).

61363226563 is an equidigital number, since it uses as much as digits as its factorization.

61363226563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 43.

The spelling of 61363226563 in words is "sixty-one billion, three hundred sixty-three million, two hundred twenty-six thousand, five hundred sixty-three".