7378438231 has 2 divisors, whose sum is σ = 7378438232. Its totient is φ = 7378438230.

The previous prime is 7378438217. The next prime is 7378438259. The reversal of 7378438231 is 1328348737.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7378438231 - 2⁹ = 7378437719 is a prime.

It is a super-2 number, since 2×7378438231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7378438211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3689219115 + 3689219116.

It is an arithmetic number, because the mean of its divisors is an integer number (3689219116).

Almost surely, 2^7378438231 is an apocalyptic number.

7378438231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7378438231 is an equidigital number, since it uses as much as digits as its factorization.

7378438231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 46.

The square root of 7378438231 is about 85897.8360088309. The cubic root of 7378438231 is about 1946.8006472917.

The spelling of 7378438231 in words is "seven billion, three hundred seventy-eight million, four hundred thirty-eight thousand, two hundred thirty-one".