7280381351 has 2 divisors, whose sum is σ = 7280381352. Its totient is φ = 7280381350.

The previous prime is 7280381321. The next prime is 7280381371. The reversal of 7280381351 is 1531830827.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7280381351 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7280381321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3640190675 + 3640190676.

It is an arithmetic number, because the mean of its divisors is an integer number (3640190676).

Almost surely, 2^7280381351 is an apocalyptic number.

7280381351 is a deficient number, since it is larger than the sum of its proper divisors (1).

7280381351 is an equidigital number, since it uses as much as digits as its factorization.

7280381351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 7280381351 is about 85325.1507528700. The cubic root of 7280381351 is about 1938.1380575785.

The spelling of 7280381351 in words is "seven billion, two hundred eighty million, three hundred eighty-one thousand, three hundred fifty-one".