61725223384063 has 2 divisors, whose sum is σ = 61725223384064. Its totient is φ = 61725223384062.

The previous prime is 61725223384061. The next prime is 61725223384073. The reversal of 61725223384063 is 36048332252716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61725223384063 - 2¹ = 61725223384061 is a prime.

Together with 61725223384061, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61725223384063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61725223384061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30862611692031 + 30862611692032.

It is an arithmetic number, because the mean of its divisors is an integer number (30862611692032).

Almost surely, 2^{61725223384063} is an apocalyptic number.

61725223384063 is a deficient number, since it is larger than the sum of its proper divisors (1).

61725223384063 is an equidigital number, since it uses as much as digits as its factorization.

61725223384063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 61725223384063 in words is "sixty-one trillion, seven hundred twenty-five billion, two hundred twenty-three million, three hundred eighty-four thousand, sixty-three".