7042398049 has 2 divisors, whose sum is σ = 7042398050. Its totient is φ = 7042398048.

The previous prime is 7042398043. The next prime is 7042398067. The reversal of 7042398049 is 9408932407.

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., 5349898449 + 1692499600 = 73143^2 + 41140^2 .

It is a cyclic number.

It is not a de Polignac number, because 7042398049 - 2⁵ = 7042398017 is a prime.

It is not a weakly prime, because it can be changed into another prime (7042398043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3521199024 + 3521199025.

It is an arithmetic number, because the mean of its divisors is an integer number (3521199025).

Almost surely, 2^7042398049 is an apocalyptic number.

It is an amenable number.

7042398049 is a deficient number, since it is larger than the sum of its proper divisors (1).

7042398049 is an equidigital number, since it uses as much as digits as its factorization.

7042398049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 7042398049 is about 83918.9969494393. The cubic root of 7042398049 is about 1916.7855328860.

The spelling of 7042398049 in words is "seven billion, forty-two million, three hundred ninety-eight thousand, forty-nine".