1112345677777 has 2 divisors, whose sum is σ = 1112345677778. Its totient is φ = 1112345677776.

The previous prime is 1112345677759. The next prime is 1112345677799. The reversal of 1112345677777 is 7777765432111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 841712667601 + 270633010176 = 917449^2 + 520224^2 .

It is an emirp because it is prime and its reverse (7777765432111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1112345677777 - 2¹⁵ = 1112345645009 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1112345677727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556172838888 + 556172838889.

It is an arithmetic number, because the mean of its divisors is an integer number (556172838889).

Almost surely, 2^{1112345677777} is an apocalyptic number.

It is an amenable number.

1112345677777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112345677777 is an equidigital number, since it uses as much as digits as its factorization.

1112345677777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12101040, while the sum is 58.

The spelling of 1112345677777 in words is "one trillion, one hundred twelve billion, three hundred forty-five million, six hundred seventy-seven thousand, seven hundred seventy-seven".