61467321563 has 2 divisors, whose sum is σ = 61467321564. Its totient is φ = 61467321562.

The previous prime is 61467321397. The next prime is 61467321569. The reversal of 61467321563 is 36512376416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61467321563 - 2¹² = 61467317467 is a prime.

It is a super-3 number, since 3×61467321563³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (61467321569) 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 as a sum of consecutive naturals, namely, 30733660781 + 30733660782.

It is an arithmetic number, because the mean of its divisors is an integer number (30733660782).

Almost surely, 2^61467321563 is an apocalyptic number.

61467321563 is a deficient number, since it is larger than the sum of its proper divisors (1).

61467321563 is an equidigital number, since it uses as much as digits as its factorization.

61467321563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

Adding to 61467321563 its reverse (36512376416), we get a palindrome (97979697979).

The spelling of 61467321563 in words is "sixty-one billion, four hundred sixty-seven million, three hundred twenty-one thousand, five hundred sixty-three".