1444680920771 has 32 divisors (see below), whose sum is σ = 1600627392000. Its totient is φ = 1293008532480.

The previous prime is 1444680920747. The next prime is 1444680920783. The reversal of 1444680920771 is 1770290864441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444680920771 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444680920071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137204435 + ... + 137214963.

It is an arithmetic number, because the mean of its divisors is an integer number (50019606000).

Almost surely, 2^{1444680920771} is an apocalyptic number.

1444680920771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1444680920771 is a deficient number, since it is larger than the sum of its proper divisors (155946471229).

1444680920771 is a wasteful number, since it uses less digits than its factorization.

1444680920771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11339.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 1444680920771 in words is "one trillion, four hundred forty-four billion, six hundred eighty million, nine hundred twenty thousand, seven hundred seventy-one".