77251313340067 has 2 divisors, whose sum is σ = 77251313340068. Its totient is φ = 77251313340066.

The previous prime is 77251313340059. The next prime is 77251313340181. The reversal of 77251313340067 is 76004331315277.

It is a weak prime.

It is an emirp because it is prime and its reverse (76004331315277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77251313340067 - 2³ = 77251313340059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77251313340067.

It is not a weakly prime, because it can be changed into another prime (77251310340067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38625656670033 + 38625656670034.

It is an arithmetic number, because the mean of its divisors is an integer number (38625656670034).

Almost surely, 2^{77251313340067} is an apocalyptic number.

77251313340067 is a deficient number, since it is larger than the sum of its proper divisors (1).

77251313340067 is an equidigital number, since it uses as much as digits as its factorization.

77251313340067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 77251313340067 in words is "seventy-seven trillion, two hundred fifty-one billion, three hundred thirteen million, three hundred forty thousand, sixty-seven".