61614140563 has 2 divisors, whose sum is σ = 61614140564. Its totient is φ = 61614140562.

The previous prime is 61614140561. The next prime is 61614140593. The reversal of 61614140563 is 36504141616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61614140563 - 2¹ = 61614140561 is a prime.

Together with 61614140561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61614140561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30807070281 + 30807070282.

It is an arithmetic number, because the mean of its divisors is an integer number (30807070282).

Almost surely, 2^61614140563 is an apocalyptic number.

61614140563 is a deficient number, since it is larger than the sum of its proper divisors (1).

61614140563 is an equidigital number, since it uses as much as digits as its factorization.

61614140563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 61614140563 in words is "sixty-one billion, six hundred fourteen million, one hundred forty thousand, five hundred sixty-three".