1444801771147 has 4 divisors (see below), whose sum is σ = 1651202024176. Its totient is φ = 1238401518120.

The previous prime is 1444801771123. The next prime is 1444801771151. The reversal of 1444801771147 is 7411771084441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1444801771147 - 2⁷ = 1444801771019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444801771147.

It is not an unprimeable number, because it can be changed into a prime (1444801771117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103200126504 + ... + 103200126517.

It is an arithmetic number, because the mean of its divisors is an integer number (412800506044).

Almost surely, 2^{1444801771147} is an apocalyptic number.

1444801771147 is a deficient number, since it is larger than the sum of its proper divisors (206400253029).

1444801771147 is an equidigital number, since it uses as much as digits as its factorization.

1444801771147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206400253028.

The product of its (nonzero) digits is 702464, while the sum is 49.

The spelling of 1444801771147 in words is "one trillion, four hundred forty-four billion, eight hundred one million, seven hundred seventy-one thousand, one hundred forty-seven".