59644426561 has 2 divisors, whose sum is σ = 59644426562. Its totient is φ = 59644426560.

The previous prime is 59644426531. The next prime is 59644426601. The reversal of 59644426561 is 16562444695.

59644426561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35860618161 + 23783808400 = 189369^2 + 154220^2 .

It is a cyclic number.

It is not a de Polignac number, because 59644426561 - 2²³ = 59636037953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 59644426499 and 59644426508.

It is not a weakly prime, because it can be changed into another prime (59644426531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29822213280 + 29822213281.

It is an arithmetic number, because the mean of its divisors is an integer number (29822213281).

Almost surely, 2^59644426561 is an apocalyptic number.

It is an amenable number.

59644426561 is a deficient number, since it is larger than the sum of its proper divisors (1).

59644426561 is an equidigital number, since it uses as much as digits as its factorization.

59644426561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6220800, while the sum is 52.

The spelling of 59644426561 in words is "fifty-nine billion, six hundred forty-four million, four hundred twenty-six thousand, five hundred sixty-one".