144610637657 has 2 divisors, whose sum is σ = 144610637658. Its totient is φ = 144610637656.

The previous prime is 144610637627. The next prime is 144610637693. The reversal of 144610637657 is 756736016441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127666148416 + 16944489241 = 357304^2 + 130171^2 .

It is a cyclic number.

It is not a de Polignac number, because 144610637657 - 2¹² = 144610633561 is a prime.

It is not a weakly prime, because it can be changed into another prime (144610637617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72305318828 + 72305318829.

It is an arithmetic number, because the mean of its divisors is an integer number (72305318829).

Almost surely, 2^144610637657 is an apocalyptic number.

It is an amenable number.

144610637657 is a deficient number, since it is larger than the sum of its proper divisors (1).

144610637657 is an equidigital number, since it uses as much as digits as its factorization.

144610637657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 144610637657 in words is "one hundred forty-four billion, six hundred ten million, six hundred thirty-seven thousand, six hundred fifty-seven".