7708942643 has 2 divisors, whose sum is σ = 7708942644. Its totient is φ = 7708942642.

The previous prime is 7708942607. The next prime is 7708942663. The reversal of 7708942643 is 3462498077.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7708942643 - 2⁸ = 7708942387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7708942591 and 7708942600.

It is not a weakly prime, because it can be changed into another prime (7708942663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3854471321 + 3854471322.

It is an arithmetic number, because the mean of its divisors is an integer number (3854471322).

Almost surely, 2^7708942643 is an apocalyptic number.

7708942643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7708942643 is an equidigital number, since it uses as much as digits as its factorization.

7708942643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The square root of 7708942643 is about 87800.5845253891. The cubic root of 7708942643 is about 1975.4449795201. Note that the first 3 decimals are identical.

The spelling of 7708942643 in words is "seven billion, seven hundred eight million, nine hundred forty-two thousand, six hundred forty-three".