77252446641169 has 2 divisors, whose sum is σ = 77252446641170. Its totient is φ = 77252446641168.

The previous prime is 77252446641119. The next prime is 77252446641191. The reversal of 77252446641169 is 96114664425277.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73053123540544 + 4199323100625 = 8547112^2 + 2049225^2 .

It is a cyclic number.

It is not a de Polignac number, because 77252446641169 - 2¹⁵ = 77252446608401 is a prime.

It is a super-2 number, since 2×77252446641169² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77252446641169.

It is not a weakly prime, because it can be changed into another prime (77252446641119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38626223320584 + 38626223320585.

It is an arithmetic number, because the mean of its divisors is an integer number (38626223320585).

Almost surely, 2^{77252446641169} is an apocalyptic number.

It is an amenable number.

77252446641169 is a deficient number, since it is larger than the sum of its proper divisors (1).

77252446641169 is an equidigital number, since it uses as much as digits as its factorization.

77252446641169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121927680, while the sum is 64.

The spelling of 77252446641169 in words is "seventy-seven trillion, two hundred fifty-two billion, four hundred forty-six million, six hundred forty-one thousand, one hundred sixty-nine".