7868378387423 has 2 divisors, whose sum is σ = 7868378387424. Its totient is φ = 7868378387422.

The previous prime is 7868378387351. The next prime is 7868378387537. The reversal of 7868378387423 is 3247838738687.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7868378387423 - 2¹⁴ = 7868378371039 is a prime.

It is a super-2 number, since 2×7868378387423² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7868378387323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3934189193711 + 3934189193712.

It is an arithmetic number, because the mean of its divisors is an integer number (3934189193712).

Almost surely, 2^{7868378387423} is an apocalyptic number.

7868378387423 is a deficient number, since it is larger than the sum of its proper divisors (1).

7868378387423 is an equidigital number, since it uses as much as digits as its factorization.

7868378387423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1820786688, while the sum is 74.

The spelling of 7868378387423 in words is "seven trillion, eight hundred sixty-eight billion, three hundred seventy-eight million, three hundred eighty-seven thousand, four hundred twenty-three".