7812301427929 has 2 divisors, whose sum is σ = 7812301427930. Its totient is φ = 7812301427928.

The previous prime is 7812301427927. The next prime is 7812301427941. The reversal of 7812301427929 is 9297241032187.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7477616037529 + 334685390400 = 2734523^2 + 578520^2 .

It is an emirp because it is prime and its reverse (9297241032187) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7812301427929 - 2¹ = 7812301427927 is a prime.

It is a super-2 number, since 2×7812301427929² (a number of 27 digits) contains 22 as substring.

Together with 7812301427927, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7812301427929.

It is not a weakly prime, because it can be changed into another prime (7812301427927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3906150713964 + 3906150713965.

It is an arithmetic number, because the mean of its divisors is an integer number (3906150713965).

Almost surely, 2^{7812301427929} is an apocalyptic number.

It is an amenable number.

7812301427929 is a deficient number, since it is larger than the sum of its proper divisors (1).

7812301427929 is an equidigital number, since it uses as much as digits as its factorization.

7812301427929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 7812301427929 in words is "seven trillion, eight hundred twelve billion, three hundred one million, four hundred twenty-seven thousand, nine hundred twenty-nine".