77198314007 has 2 divisors, whose sum is σ = 77198314008. Its totient is φ = 77198314006.

The previous prime is 77198313989. The next prime is 77198314009. The reversal of 77198314007 is 70041389177.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77198314007 - 2¹⁴ = 77198297623 is a prime.

Together with 77198314009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77198314009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38599157003 + 38599157004.

It is an arithmetic number, because the mean of its divisors is an integer number (38599157004).

Almost surely, 2^77198314007 is an apocalyptic number.

77198314007 is a deficient number, since it is larger than the sum of its proper divisors (1).

77198314007 is an equidigital number, since it uses as much as digits as its factorization.

77198314007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 47.

The spelling of 77198314007 in words is "seventy-seven billion, one hundred ninety-eight million, three hundred fourteen thousand, seven".