77324945351 has 2 divisors, whose sum is σ = 77324945352. Its totient is φ = 77324945350.

The previous prime is 77324945333. The next prime is 77324945353. The reversal of 77324945351 is 15354942377.

It is a strong prime.

It is an emirp because it is prime and its reverse (15354942377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77324945351 - 2¹⁸ = 77324683207 is a prime.

Together with 77324945353, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77324945351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77324945353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38662472675 + 38662472676.

It is an arithmetic number, because the mean of its divisors is an integer number (38662472676).

Almost surely, 2^77324945351 is an apocalyptic number.

77324945351 is a deficient number, since it is larger than the sum of its proper divisors (1).

77324945351 is an equidigital number, since it uses as much as digits as its factorization.

77324945351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 50.

The spelling of 77324945351 in words is "seventy-seven billion, three hundred twenty-four million, nine hundred forty-five thousand, three hundred fifty-one".