77351827019 has 2 divisors, whose sum is σ = 77351827020. Its totient is φ = 77351827018.

The previous prime is 77351826967. The next prime is 77351827039. The reversal of 77351827019 is 91072815377.

It is a strong prime.

It is an emirp because it is prime and its reverse (91072815377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77351827019 - 2¹² = 77351822923 is a prime.

It is a super-2 number, since 2×77351827019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (77351827039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38675913509 + 38675913510.

It is an arithmetic number, because the mean of its divisors is an integer number (38675913510).

Almost surely, 2^77351827019 is an apocalyptic number.

77351827019 is a deficient number, since it is larger than the sum of its proper divisors (1).

77351827019 is an equidigital number, since it uses as much as digits as its factorization.

77351827019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 77351827019 in words is "seventy-seven billion, three hundred fifty-one million, eight hundred twenty-seven thousand, nineteen".