42898410449 has 2 divisors, whose sum is σ = 42898410450. Its totient is φ = 42898410448.

The previous prime is 42898410427. The next prime is 42898410547. The reversal of 42898410449 is 94401489824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42851898049 + 46512400 = 207007^2 + 6820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42898410449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42898410449.

It is not a weakly prime, because it can be changed into another prime (42898419449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21449205224 + 21449205225.

It is an arithmetic number, because the mean of its divisors is an integer number (21449205225).

Almost surely, 2^42898410449 is an apocalyptic number.

It is an amenable number.

42898410449 is a deficient number, since it is larger than the sum of its proper divisors (1).

42898410449 is an equidigital number, since it uses as much as digits as its factorization.

42898410449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 42898410449 in words is "forty-two billion, eight hundred ninety-eight million, four hundred ten thousand, four hundred forty-nine".