7816996427 has 2 divisors, whose sum is σ = 7816996428. Its totient is φ = 7816996426.

The previous prime is 7816996391. The next prime is 7816996441. The reversal of 7816996427 is 7246996187.

It is a strong prime.

It is an emirp because it is prime and its reverse (7246996187) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7816996427 - 2¹⁴ = 7816980043 is a prime.

It is a super-2 number, since 2×7816996427² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7816996027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3908498213 + 3908498214.

It is an arithmetic number, because the mean of its divisors is an integer number (3908498214).

Almost surely, 2^7816996427 is an apocalyptic number.

7816996427 is a deficient number, since it is larger than the sum of its proper divisors (1).

7816996427 is an equidigital number, since it uses as much as digits as its factorization.

7816996427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 59.

The square root of 7816996427 is about 88413.7796217309. The cubic root of 7816996427 is about 1984.6319157096.

The spelling of 7816996427 in words is "seven billion, eight hundred sixteen million, nine hundred ninety-six thousand, four hundred twenty-seven".