7427419897 has 2 divisors, whose sum is σ = 7427419898. Its totient is φ = 7427419896.

The previous prime is 7427419843. The next prime is 7427419933. The reversal of 7427419897 is 7989147247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7334894736 + 92525161 = 85644^2 + 9619^2 .

It is a cyclic number.

It is not a de Polignac number, because 7427419897 - 2¹⁵ = 7427387129 is a prime.

It is not a weakly prime, because it can be changed into another prime (7427419817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3713709948 + 3713709949.

It is an arithmetic number, because the mean of its divisors is an integer number (3713709949).

Almost surely, 2^7427419897 is an apocalyptic number.

It is an amenable number.

7427419897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7427419897 is an equidigital number, since it uses as much as digits as its factorization.

7427419897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 58.

The square root of 7427419897 is about 86182.4802207502. The cubic root of 7427419897 is about 1951.0990864716.

The spelling of 7427419897 in words is "seven billion, four hundred twenty-seven million, four hundred nineteen thousand, eight hundred ninety-seven".