1444428586642 has 16 divisors (see below), whose sum is σ = 2241768801600. Its totient is φ = 697181521680.

The previous prime is 1444428586639. The next prime is 1444428586651. The reversal of 1444428586642 is 2466858244441.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

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, 1983534 + ... + 2612137.

It is an arithmetic number, because the mean of its divisors is an integer number (140110550100).

Almost surely, 2^{1444428586642} is an apocalyptic number.

1444428586642 is a deficient number, since it is larger than the sum of its proper divisors (797340214958).

1444428586642 is a wasteful number, since it uses less digits than its factorization.

1444428586642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601121.

The product of its digits is 47185920, while the sum is 58.

The spelling of 1444428586642 in words is "one trillion, four hundred forty-four billion, four hundred twenty-eight million, five hundred eighty-six thousand, six hundred forty-two".