7943738863 has 2 divisors, whose sum is σ = 7943738864. Its totient is φ = 7943738862.

The previous prime is 7943738857. The next prime is 7943738909. The reversal of 7943738863 is 3688373497.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7943738863 - 2¹³ = 7943730671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7943738798 and 7943738807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7943738813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3971869431 + 3971869432.

It is an arithmetic number, because the mean of its divisors is an integer number (3971869432).

Almost surely, 2^7943738863 is an apocalyptic number.

7943738863 is a deficient number, since it is larger than the sum of its proper divisors (1).

7943738863 is an equidigital number, since it uses as much as digits as its factorization.

7943738863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 58.

The square root of 7943738863 is about 89127.6548720990. The cubic root of 7943738863 is about 1995.3005380945.

The spelling of 7943738863 in words is "seven billion, nine hundred forty-three million, seven hundred thirty-eight thousand, eight hundred sixty-three".