1445112111777 has 8 divisors (see below), whose sum is σ = 1935304326816. Its totient is φ = 959163985632.

The previous prime is 1445112111769. The next prime is 1445112111791. The reversal of 1445112111777 is 7771112115441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1445112111777 - 2³ = 1445112111769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1445112111577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061021428 + ... + 1061022789.

It is an arithmetic number, because the mean of its divisors is an integer number (241913040852).

Almost surely, 2^{1445112111777} is an apocalyptic number.

It is an amenable number.

1445112111777 is a deficient number, since it is larger than the sum of its proper divisors (490192215039).

1445112111777 is a wasteful number, since it uses less digits than its factorization.

1445112111777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122044447.

The product of its digits is 54880, while the sum is 42.

The spelling of 1445112111777 in words is "one trillion, four hundred forty-five billion, one hundred twelve million, one hundred eleven thousand, seven hundred seventy-seven".