144807727637 has 2 divisors, whose sum is σ = 144807727638. Its totient is φ = 144807727636.

The previous prime is 144807727583. The next prime is 144807727717. The reversal of 144807727637 is 736727708441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139247639281 + 5560088356 = 373159^2 + 74566^2 .

It is a cyclic number.

It is not a de Polignac number, because 144807727637 - 2²⁶ = 144740618773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144807727237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72403863818 + 72403863819.

It is an arithmetic number, because the mean of its divisors is an integer number (72403863819).

Almost surely, 2^144807727637 is an apocalyptic number.

It is an amenable number.

144807727637 is a deficient number, since it is larger than the sum of its proper divisors (1).

144807727637 is an equidigital number, since it uses as much as digits as its factorization.

144807727637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11063808, while the sum is 56.

The spelling of 144807727637 in words is "one hundred forty-four billion, eight hundred seven million, seven hundred twenty-seven thousand, six hundred thirty-seven".