7875778367 has 2 divisors, whose sum is σ = 7875778368. Its totient is φ = 7875778366.

The previous prime is 7875778357. The next prime is 7875778387. The reversal of 7875778367 is 7638775787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7875778367 - 2¹⁸ = 7875516223 is a prime.

It is a super-2 number, since 2×7875778367² (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 (7875778357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3937889183 + 3937889184.

It is an arithmetic number, because the mean of its divisors is an integer number (3937889184).

Almost surely, 2^7875778367 is an apocalyptic number.

7875778367 is a deficient number, since it is larger than the sum of its proper divisors (1).

7875778367 is an equidigital number, since it uses as much as digits as its factorization.

7875778367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96808320, while the sum is 65.

The square root of 7875778367 is about 88745.5822393430. The cubic root of 7875778367 is about 1989.5941502929.

The spelling of 7875778367 in words is "seven billion, eight hundred seventy-five million, seven hundred seventy-eight thousand, three hundred sixty-seven".