7143642859 has 2 divisors, whose sum is σ = 7143642860. Its totient is φ = 7143642858.

The previous prime is 7143642853. The next prime is 7143642881. The reversal of 7143642859 is 9582463417.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7143642859 - 2³ = 7143642851 is a prime.

It is not a weakly prime, because it can be changed into another prime (7143642851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571821429 + 3571821430.

It is an arithmetic number, because the mean of its divisors is an integer number (3571821430).

Almost surely, 2^7143642859 is an apocalyptic number.

7143642859 is a deficient number, since it is larger than the sum of its proper divisors (1).

7143642859 is an equidigital number, since it uses as much as digits as its factorization.

7143642859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 7143642859 is about 84520.0737044165. The cubic root of 7143642859 is about 1925.9273978808.

The spelling of 7143642859 in words is "seven billion, one hundred forty-three million, six hundred forty-two thousand, eight hundred fifty-nine".