7478449351 has 2 divisors, whose sum is σ = 7478449352. Its totient is φ = 7478449350.

The previous prime is 7478449313. The next prime is 7478449387. The reversal of 7478449351 is 1539448747.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7478449351 - 2²⁹ = 6941578439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7478443351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3739224675 + 3739224676.

It is an arithmetic number, because the mean of its divisors is an integer number (3739224676).

Almost surely, 2^7478449351 is an apocalyptic number.

7478449351 is a deficient number, since it is larger than the sum of its proper divisors (1).

7478449351 is an equidigital number, since it uses as much as digits as its factorization.

7478449351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 52.

The square root of 7478449351 is about 86478.0281401004. The cubic root of 7478449351 is about 1955.5571788993.

The spelling of 7478449351 in words is "seven billion, four hundred seventy-eight million, four hundred forty-nine thousand, three hundred fifty-one".