34440144257 has 4 divisors (see below), whose sum is σ = 34827112260. Its totient is φ = 34053176256.

The previous prime is 34440144253. The next prime is 34440144259. The reversal of 34440144257 is 75244104443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75244104443 = 2287 ⋅32900789.

It can be written as a sum of positive squares in 2 ways, for example, as 11935344001 + 22504800256 = 109249^2 + 150016^2 .

It is a cyclic number.

It is not a de Polignac number, because 34440144257 - 2² = 34440144253 is a prime.

It is a super-2 number, since 2×34440144257² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34440144257.

It is not an unprimeable number, because it can be changed into a prime (34440144253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193483868 + ... + 193484045.

It is an arithmetic number, because the mean of its divisors is an integer number (8706778065).

Almost surely, 2^34440144257 is an apocalyptic number.

It is an amenable number.

34440144257 is a deficient number, since it is larger than the sum of its proper divisors (386968003).

34440144257 is an equidigital number, since it uses as much as digits as its factorization.

34440144257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386968002.

The product of its (nonzero) digits is 215040, while the sum is 38.

The spelling of 34440144257 in words is "thirty-four billion, four hundred forty million, one hundred forty-four thousand, two hundred fifty-seven".