244155355009 has 2 divisors, whose sum is σ = 244155355010. Its totient is φ = 244155355008.

The previous prime is 244155354967. The next prime is 244155355033. The reversal of 244155355009 is 900553551442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234009225025 + 10146129984 = 483745^2 + 100728^2 .

It is a cyclic number.

It is not a de Polignac number, because 244155355009 - 2¹³ = 244155346817 is a prime.

It is a super-2 number, since 2×244155355009² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (244155355039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122077677504 + 122077677505.

It is an arithmetic number, because the mean of its divisors is an integer number (122077677505).

Almost surely, 2^244155355009 is an apocalyptic number.

It is an amenable number.

244155355009 is a deficient number, since it is larger than the sum of its proper divisors (1).

244155355009 is an equidigital number, since it uses as much as digits as its factorization.

244155355009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 244155355009 in words is "two hundred forty-four billion, one hundred fifty-five million, three hundred fifty-five thousand, nine".