78368275943 has 2 divisors, whose sum is σ = 78368275944. Its totient is φ = 78368275942.

The previous prime is 78368275939. The next prime is 78368275967. The reversal of 78368275943 is 34957286387.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78368275943 - 2² = 78368275939 is a prime.

It is a super-2 number, since 2×78368275943² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78368275903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39184137971 + 39184137972.

It is an arithmetic number, because the mean of its divisors is an integer number (39184137972).

Almost surely, 2^78368275943 is an apocalyptic number.

78368275943 is a deficient number, since it is larger than the sum of its proper divisors (1).

78368275943 is an equidigital number, since it uses as much as digits as its factorization.

78368275943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60963840, while the sum is 62.

The spelling of 78368275943 in words is "seventy-eight billion, three hundred sixty-eight million, two hundred seventy-five thousand, nine hundred forty-three".