7988568851 has 2 divisors, whose sum is σ = 7988568852. Its totient is φ = 7988568850.

The previous prime is 7988568827. The next prime is 7988568869. The reversal of 7988568851 is 1588658897.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7988568851 is a prime.

It is not a weakly prime, because it can be changed into another prime (7988568871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3994284425 + 3994284426.

It is an arithmetic number, because the mean of its divisors is an integer number (3994284426).

Almost surely, 2^7988568851 is an apocalyptic number.

7988568851 is a deficient number, since it is larger than the sum of its proper divisors (1).

7988568851 is an equidigital number, since it uses as much as digits as its factorization.

7988568851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38707200, while the sum is 65.

The square root of 7988568851 is about 89378.7941907923. The cubic root of 7988568851 is about 1999.0469501701.

The spelling of 7988568851 in words is "seven billion, nine hundred eighty-eight million, five hundred sixty-eight thousand, eight hundred fifty-one".