7425451613 has 2 divisors, whose sum is σ = 7425451614. Its totient is φ = 7425451612.

The previous prime is 7425451609. The next prime is 7425451643. The reversal of 7425451613 is 3161545247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6009660484 + 1415791129 = 77522^2 + 37627^2 .

It is a cyclic number.

It is not a de Polignac number, because 7425451613 - 2² = 7425451609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7425451643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3712725806 + 3712725807.

It is an arithmetic number, because the mean of its divisors is an integer number (3712725807).

Almost surely, 2^7425451613 is an apocalyptic number.

It is an amenable number.

7425451613 is a deficient number, since it is larger than the sum of its proper divisors (1).

7425451613 is an equidigital number, since it uses as much as digits as its factorization.

7425451613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 7425451613 is about 86171.0601826390. The cubic root of 7425451613 is about 1950.9267226068.

The spelling of 7425451613 in words is "seven billion, four hundred twenty-five million, four hundred fifty-one thousand, six hundred thirteen".