7994237143 has 2 divisors, whose sum is σ = 7994237144. Its totient is φ = 7994237142.

The previous prime is 7994237107. The next prime is 7994237171. The reversal of 7994237143 is 3417324997.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7994237143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7994237843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3997118571 + 3997118572.

It is an arithmetic number, because the mean of its divisors is an integer number (3997118572).

Almost surely, 2^7994237143 is an apocalyptic number.

7994237143 is a deficient number, since it is larger than the sum of its proper divisors (1).

7994237143 is an equidigital number, since it uses as much as digits as its factorization.

7994237143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The square root of 7994237143 is about 89410.4979462703. The cubic root of 7994237143 is about 1999.5196465562.

The spelling of 7994237143 in words is "seven billion, nine hundred ninety-four million, two hundred thirty-seven thousand, one hundred forty-three".