244142525009 has 2 divisors, whose sum is σ = 244142525010. Its totient is φ = 244142525008.

The previous prime is 244142524991. The next prime is 244142525141. The reversal of 244142525009 is 900525241442.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147185020609 + 96957504400 = 383647^2 + 311380^2 .

It is a cyclic number.

It is not a de Polignac number, because 244142525009 - 2⁸ = 244142524753 is a prime.

It is not a weakly prime, because it can be changed into another prime (244142515009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122071262504 + 122071262505.

It is an arithmetic number, because the mean of its divisors is an integer number (122071262505).

Almost surely, 2^244142525009 is an apocalyptic number.

It is an amenable number.

244142525009 is a deficient number, since it is larger than the sum of its proper divisors (1).

244142525009 is an equidigital number, since it uses as much as digits as its factorization.

244142525009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 244142525009 in words is "two hundred forty-four billion, one hundred forty-two million, five hundred twenty-five thousand, nine".