7438119457 has 2 divisors, whose sum is σ = 7438119458. Its totient is φ = 7438119456.

The previous prime is 7438119421. The next prime is 7438119511. The reversal of 7438119457 is 7549118347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6079164961 + 1358954496 = 77969^2 + 36864^2 .

It is an emirp because it is prime and its reverse (7549118347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7438119457 - 2⁷ = 7438119329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7438119457.

It is not a weakly prime, because it can be changed into another prime (7438114457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3719059728 + 3719059729.

It is an arithmetic number, because the mean of its divisors is an integer number (3719059729).

Almost surely, 2^7438119457 is an apocalyptic number.

It is an amenable number.

7438119457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7438119457 is an equidigital number, since it uses as much as digits as its factorization.

7438119457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 49.

The square root of 7438119457 is about 86244.5329107880. The cubic root of 7438119457 is about 1952.0355213662.

The spelling of 7438119457 in words is "seven billion, four hundred thirty-eight million, one hundred nineteen thousand, four hundred fifty-seven".